[llvm] 88c618c - [ConstraintElim] Add tests for mul nsw and signed predicates.
Florian Hahn via llvm-commits
llvm-commits at lists.llvm.org
Tue Apr 25 11:51:43 PDT 2023
Author: Florian Hahn
Date: 2023-04-25T19:51:23+01:00
New Revision: 88c618cc414b6a4d0f961825bf029d8266a37254
URL: https://github.com/llvm/llvm-project/commit/88c618cc414b6a4d0f961825bf029d8266a37254
DIFF: https://github.com/llvm/llvm-project/commit/88c618cc414b6a4d0f961825bf029d8266a37254.diff
LOG: [ConstraintElim] Add tests for mul nsw and signed predicates.
Added:
llvm/test/Transforms/ConstraintElimination/mul-nsw.ll
Modified:
Removed:
################################################################################
diff --git a/llvm/test/Transforms/ConstraintElimination/mul-nsw.ll b/llvm/test/Transforms/ConstraintElimination/mul-nsw.ll
new file mode 100644
index 0000000000000..45d4f79115780
--- /dev/null
+++ b/llvm/test/Transforms/ConstraintElimination/mul-nsw.ll
@@ -0,0 +1,758 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s
+
+declare void @use(i1)
+declare void @llvm.assume(i1)
+
+define void @slt_mul_nsw_3_known_positive(i8 %start, i8 %high) {
+; CHECK-LABEL: @slt_mul_nsw_3_known_positive(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[MUL_3:%.*]] = mul nsw i8 [[START:%.*]], 3
+; CHECK-NEXT: [[C_1:%.*]] = icmp slt i8 [[MUL_3]], [[HIGH:%.*]]
+; CHECK-NEXT: [[C_2:%.*]] = icmp sgt i8 [[START]], 0
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_1]], [[C_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK: then:
+; CHECK-NEXT: [[T_0:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_0]])
+; CHECK-NEXT: [[START_1:%.*]] = mul nsw i8 [[START]], 1
+; CHECK-NEXT: [[T_1:%.*]] = icmp slt i8 [[START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_1]])
+; CHECK-NEXT: [[START_2:%.*]] = mul nsw i8 [[START]], 2
+; CHECK-NEXT: [[T_2:%.*]] = icmp slt i8 [[START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_2]])
+; CHECK-NEXT: [[START_3:%.*]] = mul nsw i8 [[START]], 3
+; CHECK-NEXT: [[T_3:%.*]] = icmp slt i8 [[START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_3]])
+; CHECK-NEXT: [[START_4:%.*]] = mul nsw i8 [[START]], 4
+; CHECK-NEXT: [[C_3:%.*]] = icmp slt i8 [[START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_3]])
+; CHECK-NEXT: ret void
+; CHECK: else:
+; CHECK-NEXT: [[C_4:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_4]])
+; CHECK-NEXT: [[ELSE_START_1:%.*]] = mul nsw i8 [[START]], 1
+; CHECK-NEXT: [[C_5:%.*]] = icmp slt i8 [[ELSE_START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_5]])
+; CHECK-NEXT: [[ELSE_START_2:%.*]] = mul nsw i8 [[START]], 2
+; CHECK-NEXT: [[C_6:%.*]] = icmp slt i8 [[ELSE_START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_6]])
+; CHECK-NEXT: [[ELSE_START_3:%.*]] = mul nsw i8 [[START]], 3
+; CHECK-NEXT: [[C_7:%.*]] = icmp slt i8 [[ELSE_START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_7]])
+; CHECK-NEXT: [[ELSE_START_4:%.*]] = mul nsw i8 [[START]], 4
+; CHECK-NEXT: [[C_8:%.*]] = icmp slt i8 [[ELSE_START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_8]])
+; CHECK-NEXT: ret void
+;
+entry:
+ %mul.3 = mul nsw i8 %start, 3
+ %c.1 = icmp slt i8 %mul.3, %high
+ %c.2 = icmp sgt i8 %start, 0
+ %and = and i1 %c.1, %c.2
+ br i1 %and, label %then, label %else
+
+then:
+ %t.0 = icmp slt i8 %start, %high
+ call void @use(i1 %t.0)
+ %start.1 = mul nsw i8 %start, 1
+ %t.1 = icmp slt i8 %start.1, %high
+ call void @use(i1 %t.1)
+ %start.2 = mul nsw i8 %start, 2
+ %t.2 = icmp slt i8 %start.2, %high
+ call void @use(i1 %t.2)
+ %start.3 = mul nsw i8 %start, 3
+ %t.3 = icmp slt i8 %start.3, %high
+ call void @use(i1 %t.3)
+ %start.4 = mul nsw i8 %start, 4
+ %c.3 = icmp slt i8 %start.4, %high
+ call void @use(i1 %c.3)
+ ret void
+
+else:
+ %c.4 = icmp slt i8 %start, %high
+ call void @use(i1 %c.4)
+ %else.start.1 = mul nsw i8 %start, 1
+ %c.5 = icmp slt i8 %else.start.1, %high
+ call void @use(i1 %c.5)
+ %else.start.2 = mul nsw i8 %start, 2
+ %c.6 = icmp slt i8 %else.start.2, %high
+ call void @use(i1 %c.6)
+ %else.start.3 = mul nsw i8 %start, 3
+ %c.7 = icmp slt i8 %else.start.3, %high
+ call void @use(i1 %c.7)
+ %else.start.4 = mul nsw i8 %start, 4
+ %c.8 = icmp slt i8 %else.start.4, %high
+ call void @use(i1 %c.8)
+ ret void
+}
+
+define void @slt_mul_no_nsw_3_known_positive(i8 %start, i8 %high) {
+; CHECK-LABEL: @slt_mul_no_nsw_3_known_positive(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[MUL_3:%.*]] = mul i8 [[START:%.*]], 3
+; CHECK-NEXT: [[C_1:%.*]] = icmp slt i8 [[MUL_3]], [[HIGH:%.*]]
+; CHECK-NEXT: [[C_2:%.*]] = icmp sgt i8 [[START]], 0
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_1]], [[C_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK: then:
+; CHECK-NEXT: [[C_3:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_3]])
+; CHECK-NEXT: [[START_1:%.*]] = mul nsw i8 [[START]], 1
+; CHECK-NEXT: [[C_4:%.*]] = icmp slt i8 [[START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_4]])
+; CHECK-NEXT: [[START_2:%.*]] = mul nsw i8 [[START]], 2
+; CHECK-NEXT: [[C_5:%.*]] = icmp slt i8 [[START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_5]])
+; CHECK-NEXT: [[START_3:%.*]] = mul nsw i8 [[START]], 3
+; CHECK-NEXT: [[C_6:%.*]] = icmp slt i8 [[START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_6]])
+; CHECK-NEXT: [[START_4:%.*]] = mul nsw i8 [[START]], 4
+; CHECK-NEXT: [[C_7:%.*]] = icmp slt i8 [[START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_7]])
+; CHECK-NEXT: ret void
+; CHECK: else:
+; CHECK-NEXT: [[C_8:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_8]])
+; CHECK-NEXT: [[ELSE_START_1:%.*]] = mul nsw i8 [[START]], 1
+; CHECK-NEXT: [[C_9:%.*]] = icmp slt i8 [[ELSE_START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_9]])
+; CHECK-NEXT: [[ELSE_START_2:%.*]] = mul nsw i8 [[START]], 2
+; CHECK-NEXT: [[C_10:%.*]] = icmp slt i8 [[ELSE_START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_10]])
+; CHECK-NEXT: [[ELSE_START_3:%.*]] = mul nsw i8 [[START]], 3
+; CHECK-NEXT: [[C_11:%.*]] = icmp slt i8 [[ELSE_START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_11]])
+; CHECK-NEXT: [[ELSE_START_4:%.*]] = mul nsw i8 [[START]], 4
+; CHECK-NEXT: [[C_12:%.*]] = icmp slt i8 [[ELSE_START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_12]])
+; CHECK-NEXT: ret void
+;
+entry:
+ %mul.3 = mul i8 %start, 3
+ %c.1 = icmp slt i8 %mul.3, %high
+ %c.2 = icmp sgt i8 %start, 0
+ %and = and i1 %c.1, %c.2
+ br i1 %and, label %then, label %else
+
+then:
+ %c.3 = icmp slt i8 %start, %high
+ call void @use(i1 %c.3)
+ %start.1 = mul nsw i8 %start, 1
+ %c.4 = icmp slt i8 %start.1, %high
+ call void @use(i1 %c.4)
+ %start.2 = mul nsw i8 %start, 2
+ %c.5 = icmp slt i8 %start.2, %high
+ call void @use(i1 %c.5)
+ %start.3 = mul nsw i8 %start, 3
+ %c.6 = icmp slt i8 %start.3, %high
+ call void @use(i1 %c.6)
+ %start.4 = mul nsw i8 %start, 4
+ %c.7 = icmp slt i8 %start.4, %high
+ call void @use(i1 %c.7)
+ ret void
+
+else:
+ %c.8 = icmp slt i8 %start, %high
+ call void @use(i1 %c.8)
+ %else.start.1 = mul nsw i8 %start, 1
+ %c.9 = icmp slt i8 %else.start.1, %high
+ call void @use(i1 %c.9)
+ %else.start.2 = mul nsw i8 %start, 2
+ %c.10 = icmp slt i8 %else.start.2, %high
+ call void @use(i1 %c.10)
+ %else.start.3 = mul nsw i8 %start, 3
+ %c.11 = icmp slt i8 %else.start.3, %high
+ call void @use(i1 %c.11)
+ %else.start.4 = mul nsw i8 %start, 4
+ %c.12 = icmp slt i8 %else.start.4, %high
+ call void @use(i1 %c.12)
+ ret void
+}
+
+define void @slt_mul_nsw_3_not_known_positive(i8 %start, i8 %high) {
+; CHECK-LABEL: @slt_mul_nsw_3_not_known_positive(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[MUL_3:%.*]] = mul i8 [[START:%.*]], 3
+; CHECK-NEXT: [[C_1:%.*]] = icmp slt i8 [[MUL_3]], [[HIGH:%.*]]
+; CHECK-NEXT: br i1 [[C_1]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK: then:
+; CHECK-NEXT: [[C_3:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_3]])
+; CHECK-NEXT: [[START_1:%.*]] = mul nsw i8 [[START]], 1
+; CHECK-NEXT: [[C_4:%.*]] = icmp slt i8 [[START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_4]])
+; CHECK-NEXT: [[START_2:%.*]] = mul nsw i8 [[START]], 2
+; CHECK-NEXT: [[C_5:%.*]] = icmp slt i8 [[START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_5]])
+; CHECK-NEXT: [[START_3:%.*]] = mul nsw i8 [[START]], 3
+; CHECK-NEXT: [[C_6:%.*]] = icmp slt i8 [[START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_6]])
+; CHECK-NEXT: [[START_4:%.*]] = mul nsw i8 [[START]], 4
+; CHECK-NEXT: [[C_7:%.*]] = icmp slt i8 [[START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_7]])
+; CHECK-NEXT: ret void
+; CHECK: else:
+; CHECK-NEXT: [[C_8:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_8]])
+; CHECK-NEXT: [[ELSE_START_1:%.*]] = mul nsw i8 [[START]], 1
+; CHECK-NEXT: [[C_9:%.*]] = icmp slt i8 [[ELSE_START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_9]])
+; CHECK-NEXT: [[ELSE_START_2:%.*]] = mul nsw i8 [[START]], 2
+; CHECK-NEXT: [[C_10:%.*]] = icmp slt i8 [[ELSE_START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_10]])
+; CHECK-NEXT: [[ELSE_START_3:%.*]] = mul nsw i8 [[START]], 3
+; CHECK-NEXT: [[C_11:%.*]] = icmp slt i8 [[ELSE_START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_11]])
+; CHECK-NEXT: [[ELSE_START_4:%.*]] = mul nsw i8 [[START]], 4
+; CHECK-NEXT: [[C_12:%.*]] = icmp slt i8 [[ELSE_START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_12]])
+; CHECK-NEXT: ret void
+;
+entry:
+ %mul.3 = mul i8 %start, 3
+ %c.1 = icmp slt i8 %mul.3, %high
+ br i1 %c.1, label %then, label %else
+
+then:
+ %c.3 = icmp slt i8 %start, %high
+ call void @use(i1 %c.3)
+ %start.1 = mul nsw i8 %start, 1
+ %c.4 = icmp slt i8 %start.1, %high
+ call void @use(i1 %c.4)
+ %start.2 = mul nsw i8 %start, 2
+ %c.5 = icmp slt i8 %start.2, %high
+ call void @use(i1 %c.5)
+ %start.3 = mul nsw i8 %start, 3
+ %c.6 = icmp slt i8 %start.3, %high
+ call void @use(i1 %c.6)
+ %start.4 = mul nsw i8 %start, 4
+ %c.7 = icmp slt i8 %start.4, %high
+ call void @use(i1 %c.7)
+ ret void
+
+else:
+ %c.8 = icmp slt i8 %start, %high
+ call void @use(i1 %c.8)
+ %else.start.1 = mul nsw i8 %start, 1
+ %c.9 = icmp slt i8 %else.start.1, %high
+ call void @use(i1 %c.9)
+ %else.start.2 = mul nsw i8 %start, 2
+ %c.10 = icmp slt i8 %else.start.2, %high
+ call void @use(i1 %c.10)
+ %else.start.3 = mul nsw i8 %start, 3
+ %c.11 = icmp slt i8 %else.start.3, %high
+ call void @use(i1 %c.11)
+ %else.start.4 = mul nsw i8 %start, 4
+ %c.12 = icmp slt i8 %else.start.4, %high
+ call void @use(i1 %c.12)
+ ret void
+}
+
+define void @slt_mul_nsw_neg_3_known_negative(i8 %start, i8 %high) {
+; CHECK-LABEL: @slt_mul_nsw_neg_3_known_negative(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[MUL_3:%.*]] = mul nsw i8 [[START:%.*]], -3
+; CHECK-NEXT: [[C_1:%.*]] = icmp slt i8 [[MUL_3]], [[HIGH:%.*]]
+; CHECK-NEXT: [[C_2:%.*]] = icmp slt i8 [[START]], 0
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_1]], [[C_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK: then:
+; CHECK-NEXT: [[T_0:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_0]])
+; CHECK-NEXT: [[START_1:%.*]] = mul nsw i8 [[START]], -1
+; CHECK-NEXT: [[T_1:%.*]] = icmp slt i8 [[START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_1]])
+; CHECK-NEXT: [[START_2:%.*]] = mul nsw i8 [[START]], -2
+; CHECK-NEXT: [[T_2:%.*]] = icmp slt i8 [[START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_2]])
+; CHECK-NEXT: [[START_3:%.*]] = mul nsw i8 [[START]], -3
+; CHECK-NEXT: [[T_3:%.*]] = icmp slt i8 [[START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_3]])
+; CHECK-NEXT: [[START_4:%.*]] = mul nsw i8 [[START]], -4
+; CHECK-NEXT: [[C_3:%.*]] = icmp slt i8 [[START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_3]])
+; CHECK-NEXT: ret void
+; CHECK: else:
+; CHECK-NEXT: [[C_4:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_4]])
+; CHECK-NEXT: [[ELSE_START_1:%.*]] = mul nsw i8 [[START]], -1
+; CHECK-NEXT: [[C_5:%.*]] = icmp slt i8 [[ELSE_START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_5]])
+; CHECK-NEXT: [[ELSE_START_2:%.*]] = mul nsw i8 [[START]], -2
+; CHECK-NEXT: [[C_6:%.*]] = icmp slt i8 [[ELSE_START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_6]])
+; CHECK-NEXT: [[ELSE_START_3:%.*]] = mul nsw i8 [[START]], -3
+; CHECK-NEXT: [[C_7:%.*]] = icmp slt i8 [[ELSE_START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_7]])
+; CHECK-NEXT: [[ELSE_START_4:%.*]] = mul nsw i8 [[START]], -4
+; CHECK-NEXT: [[C_8:%.*]] = icmp slt i8 [[ELSE_START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_8]])
+; CHECK-NEXT: ret void
+;
+entry:
+ %mul.3 = mul nsw i8 %start, -3
+ %c.1 = icmp slt i8 %mul.3, %high
+ %c.2 = icmp slt i8 %start, 0
+ %and = and i1 %c.1, %c.2
+ br i1 %and, label %then, label %else
+
+then:
+ %t.0 = icmp slt i8 %start, %high
+ call void @use(i1 %t.0)
+ %start.1 = mul nsw i8 %start, -1
+ %t.1 = icmp slt i8 %start.1, %high
+ call void @use(i1 %t.1)
+ %start.2 = mul nsw i8 %start, -2
+ %t.2 = icmp slt i8 %start.2, %high
+ call void @use(i1 %t.2)
+ %start.3 = mul nsw i8 %start, -3
+ %t.3 = icmp slt i8 %start.3, %high
+ call void @use(i1 %t.3)
+ %start.4 = mul nsw i8 %start, -4
+ %c.3 = icmp slt i8 %start.4, %high
+ call void @use(i1 %c.3)
+ ret void
+
+else:
+ %c.4 = icmp slt i8 %start, %high
+ call void @use(i1 %c.4)
+ %else.start.1 = mul nsw i8 %start, -1
+ %c.5 = icmp slt i8 %else.start.1, %high
+ call void @use(i1 %c.5)
+ %else.start.2 = mul nsw i8 %start, -2
+ %c.6 = icmp slt i8 %else.start.2, %high
+ call void @use(i1 %c.6)
+ %else.start.3 = mul nsw i8 %start, -3
+ %c.7 = icmp slt i8 %else.start.3, %high
+ call void @use(i1 %c.7)
+ %else.start.4 = mul nsw i8 %start, -4
+ %c.8 = icmp slt i8 %else.start.4, %high
+ call void @use(i1 %c.8)
+ ret void
+}
+
+define void @slt_mul_nsw_3_known_negative(i8 %start, i8 %high) {
+; CHECK-LABEL: @slt_mul_nsw_3_known_negative(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[MUL_3:%.*]] = mul nsw i8 [[START:%.*]], 3
+; CHECK-NEXT: [[C_1:%.*]] = icmp slt i8 [[MUL_3]], [[HIGH:%.*]]
+; CHECK-NEXT: [[C_2:%.*]] = icmp slt i8 [[START]], 0
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_1]], [[C_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK: then:
+; CHECK-NEXT: [[C_3:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_3]])
+; CHECK-NEXT: [[START_1:%.*]] = mul nsw i8 [[START]], 1
+; CHECK-NEXT: [[C_4:%.*]] = icmp slt i8 [[START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_4]])
+; CHECK-NEXT: [[START_2:%.*]] = mul nsw i8 [[START]], 2
+; CHECK-NEXT: [[C_5:%.*]] = icmp slt i8 [[START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_5]])
+; CHECK-NEXT: [[START_3:%.*]] = mul nsw i8 [[START]], 3
+; CHECK-NEXT: [[T_0:%.*]] = icmp slt i8 [[START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_0]])
+; CHECK-NEXT: [[START_4:%.*]] = mul nsw i8 [[START]], 4
+; CHECK-NEXT: [[T_1:%.*]] = icmp slt i8 [[START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_1]])
+; CHECK-NEXT: ret void
+; CHECK: else:
+; CHECK-NEXT: [[C_6:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_6]])
+; CHECK-NEXT: [[ELSE_START_1:%.*]] = mul nsw i8 [[START]], 1
+; CHECK-NEXT: [[C_7:%.*]] = icmp slt i8 [[ELSE_START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_7]])
+; CHECK-NEXT: [[ELSE_START_2:%.*]] = mul nsw i8 [[START]], 2
+; CHECK-NEXT: [[C_8:%.*]] = icmp slt i8 [[ELSE_START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_8]])
+; CHECK-NEXT: [[ELSE_START_3:%.*]] = mul nsw i8 [[START]], 3
+; CHECK-NEXT: [[C_9:%.*]] = icmp slt i8 [[ELSE_START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_9]])
+; CHECK-NEXT: [[ELSE_START_4:%.*]] = mul nsw i8 [[START]], 4
+; CHECK-NEXT: [[C_10:%.*]] = icmp slt i8 [[ELSE_START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_10]])
+; CHECK-NEXT: ret void
+;
+entry:
+ %mul.3 = mul nsw i8 %start, 3
+ %c.1 = icmp slt i8 %mul.3, %high
+ %c.2 = icmp slt i8 %start, 0
+ %and = and i1 %c.1, %c.2
+ br i1 %and, label %then, label %else
+
+then:
+ %c.3 = icmp slt i8 %start, %high
+ call void @use(i1 %c.3)
+ %start.1 = mul nsw i8 %start, 1
+ %c.4 = icmp slt i8 %start.1, %high
+ call void @use(i1 %c.4)
+ %start.2 = mul nsw i8 %start, 2
+ %c.5 = icmp slt i8 %start.2, %high
+ call void @use(i1 %c.5)
+ %start.3 = mul nsw i8 %start, 3
+ %t.0 = icmp slt i8 %start.3, %high
+ call void @use(i1 %t.0)
+ %start.4 = mul nsw i8 %start, 4
+ %t.1 = icmp slt i8 %start.4, %high
+ call void @use(i1 %t.1)
+ ret void
+
+else:
+ %c.6 = icmp slt i8 %start, %high
+ call void @use(i1 %c.6)
+ %else.start.1 = mul nsw i8 %start, 1
+ %c.7 = icmp slt i8 %else.start.1, %high
+ call void @use(i1 %c.7)
+ %else.start.2 = mul nsw i8 %start, 2
+ %c.8 = icmp slt i8 %else.start.2, %high
+ call void @use(i1 %c.8)
+ %else.start.3 = mul nsw i8 %start, 3
+ %c.9 = icmp slt i8 %else.start.3, %high
+ call void @use(i1 %c.9)
+ %else.start.4 = mul nsw i8 %start, 4
+ %c.10 = icmp slt i8 %else.start.4, %high
+ call void @use(i1 %c.10)
+ ret void
+}
+
+define void @slt_mul_nsw_neg_3_known_positive(i8 %start, i8 %high) {
+; CHECK-LABEL: @slt_mul_nsw_neg_3_known_positive(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[MUL_3:%.*]] = mul nsw i8 [[START:%.*]], -3
+; CHECK-NEXT: [[C_1:%.*]] = icmp slt i8 [[MUL_3]], [[HIGH:%.*]]
+; CHECK-NEXT: [[C_2:%.*]] = icmp sgt i8 [[START]], 0
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_1]], [[C_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK: then:
+; CHECK-NEXT: [[C_3:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_3]])
+; CHECK-NEXT: [[START_1:%.*]] = mul nsw i8 [[START]], -1
+; CHECK-NEXT: [[C_4:%.*]] = icmp slt i8 [[START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_4]])
+; CHECK-NEXT: [[START_2:%.*]] = mul nsw i8 [[START]], -2
+; CHECK-NEXT: [[C_5:%.*]] = icmp slt i8 [[START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_5]])
+; CHECK-NEXT: [[START_3:%.*]] = mul nsw i8 [[START]], -3
+; CHECK-NEXT: [[T_0:%.*]] = icmp slt i8 [[START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_0]])
+; CHECK-NEXT: [[START_4:%.*]] = mul nsw i8 [[START]], -4
+; CHECK-NEXT: [[T_1:%.*]] = icmp slt i8 [[START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_1]])
+; CHECK-NEXT: ret void
+; CHECK: else:
+; CHECK-NEXT: [[C_6:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_6]])
+; CHECK-NEXT: [[ELSE_START_1:%.*]] = mul nsw i8 [[START]], -1
+; CHECK-NEXT: [[C_7:%.*]] = icmp slt i8 [[ELSE_START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_7]])
+; CHECK-NEXT: [[ELSE_START_2:%.*]] = mul nsw i8 [[START]], -2
+; CHECK-NEXT: [[C_8:%.*]] = icmp slt i8 [[ELSE_START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_8]])
+; CHECK-NEXT: [[ELSE_START_3:%.*]] = mul nsw i8 [[START]], -3
+; CHECK-NEXT: [[C_9:%.*]] = icmp slt i8 [[ELSE_START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_9]])
+; CHECK-NEXT: [[ELSE_START_4:%.*]] = mul nsw i8 [[START]], -4
+; CHECK-NEXT: [[C_10:%.*]] = icmp slt i8 [[ELSE_START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_10]])
+; CHECK-NEXT: ret void
+;
+entry:
+ %mul.3 = mul nsw i8 %start, -3
+ %c.1 = icmp slt i8 %mul.3, %high
+ %c.2 = icmp sgt i8 %start, 0
+ %and = and i1 %c.1, %c.2
+ br i1 %and, label %then, label %else
+
+then:
+ %c.3 = icmp slt i8 %start, %high
+ call void @use(i1 %c.3)
+ %start.1 = mul nsw i8 %start, -1
+ %c.4 = icmp slt i8 %start.1, %high
+ call void @use(i1 %c.4)
+ %start.2 = mul nsw i8 %start, -2
+ %c.5 = icmp slt i8 %start.2, %high
+ call void @use(i1 %c.5)
+ %start.3 = mul nsw i8 %start, -3
+ %t.0 = icmp slt i8 %start.3, %high
+ call void @use(i1 %t.0)
+ %start.4 = mul nsw i8 %start, -4
+ %t.1 = icmp slt i8 %start.4, %high
+ call void @use(i1 %t.1)
+ ret void
+
+else:
+ %c.6 = icmp slt i8 %start, %high
+ call void @use(i1 %c.6)
+ %else.start.1 = mul nsw i8 %start, -1
+ %c.7 = icmp slt i8 %else.start.1, %high
+ call void @use(i1 %c.7)
+ %else.start.2 = mul nsw i8 %start, -2
+ %c.8 = icmp slt i8 %else.start.2, %high
+ call void @use(i1 %c.8)
+ %else.start.3 = mul nsw i8 %start, -3
+ %c.9 = icmp slt i8 %else.start.3, %high
+ call void @use(i1 %c.9)
+ %else.start.4 = mul nsw i8 %start, -4
+ %c.10 = icmp slt i8 %else.start.4, %high
+ call void @use(i1 %c.10)
+ ret void
+}
+
+define void @slt_mul_nsw_3_known_nonnegative(i8 %start, i8 %high) {
+; CHECK-LABEL: @slt_mul_nsw_3_known_nonnegative(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[MUL_3:%.*]] = mul nsw i8 [[START:%.*]], 3
+; CHECK-NEXT: [[C_1:%.*]] = icmp slt i8 [[MUL_3]], [[HIGH:%.*]]
+; CHECK-NEXT: [[C_2:%.*]] = icmp sge i8 [[START]], 0
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_1]], [[C_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK: then:
+; CHECK-NEXT: [[T_0:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_0]])
+; CHECK-NEXT: [[START_1:%.*]] = mul nsw i8 [[START]], 1
+; CHECK-NEXT: [[T_1:%.*]] = icmp slt i8 [[START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_1]])
+; CHECK-NEXT: [[START_2:%.*]] = mul nsw i8 [[START]], 2
+; CHECK-NEXT: [[T_2:%.*]] = icmp slt i8 [[START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_2]])
+; CHECK-NEXT: [[START_3:%.*]] = mul nsw i8 [[START]], 3
+; CHECK-NEXT: [[T_3:%.*]] = icmp slt i8 [[START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_3]])
+; CHECK-NEXT: [[START_4:%.*]] = mul nsw i8 [[START]], 4
+; CHECK-NEXT: [[C_3:%.*]] = icmp slt i8 [[START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_3]])
+; CHECK-NEXT: ret void
+; CHECK: else:
+; CHECK-NEXT: [[C_4:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_4]])
+; CHECK-NEXT: [[ELSE_START_1:%.*]] = mul nsw i8 [[START]], 1
+; CHECK-NEXT: [[C_5:%.*]] = icmp slt i8 [[ELSE_START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_5]])
+; CHECK-NEXT: [[ELSE_START_2:%.*]] = mul nsw i8 [[START]], 2
+; CHECK-NEXT: [[C_6:%.*]] = icmp slt i8 [[ELSE_START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_6]])
+; CHECK-NEXT: [[ELSE_START_3:%.*]] = mul nsw i8 [[START]], 3
+; CHECK-NEXT: [[C_7:%.*]] = icmp slt i8 [[ELSE_START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_7]])
+; CHECK-NEXT: [[ELSE_START_4:%.*]] = mul nsw i8 [[START]], 4
+; CHECK-NEXT: [[C_8:%.*]] = icmp slt i8 [[ELSE_START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_8]])
+; CHECK-NEXT: ret void
+;
+entry:
+ %mul.3 = mul nsw i8 %start, 3
+ %c.1 = icmp slt i8 %mul.3, %high
+ %c.2 = icmp sge i8 %start, 0
+ %and = and i1 %c.1, %c.2
+ br i1 %and, label %then, label %else
+
+then:
+ %t.0 = icmp slt i8 %start, %high
+ call void @use(i1 %t.0)
+ %start.1 = mul nsw i8 %start, 1
+ %t.1 = icmp slt i8 %start.1, %high
+ call void @use(i1 %t.1)
+ %start.2 = mul nsw i8 %start, 2
+ %t.2 = icmp slt i8 %start.2, %high
+ call void @use(i1 %t.2)
+ %start.3 = mul nsw i8 %start, 3
+ %t.3 = icmp slt i8 %start.3, %high
+ call void @use(i1 %t.3)
+ %start.4 = mul nsw i8 %start, 4
+ %c.3 = icmp slt i8 %start.4, %high
+ call void @use(i1 %c.3)
+ ret void
+
+else:
+ %c.4 = icmp slt i8 %start, %high
+ call void @use(i1 %c.4)
+ %else.start.1 = mul nsw i8 %start, 1
+ %c.5 = icmp slt i8 %else.start.1, %high
+ call void @use(i1 %c.5)
+ %else.start.2 = mul nsw i8 %start, 2
+ %c.6 = icmp slt i8 %else.start.2, %high
+ call void @use(i1 %c.6)
+ %else.start.3 = mul nsw i8 %start, 3
+ %c.7 = icmp slt i8 %else.start.3, %high
+ call void @use(i1 %c.7)
+ %else.start.4 = mul nsw i8 %start, 4
+ %c.8 = icmp slt i8 %else.start.4, %high
+ call void @use(i1 %c.8)
+ ret void
+}
+
+define void @slt_mul_nsw_both_var_non_negative(i8 %start, i8 %scale, i8 %high) {
+; CHECK-LABEL: @slt_mul_nsw_both_var_non_negative(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[MUL_3:%.*]] = mul nsw i8 [[START:%.*]], [[SCALE:%.*]]
+; CHECK-NEXT: [[C_1:%.*]] = icmp slt i8 [[MUL_3]], [[HIGH:%.*]]
+; CHECK-NEXT: [[C_2:%.*]] = icmp sgt i8 [[START]], 0
+; CHECK-NEXT: [[C3:%.*]] = icmp sgt i8 [[SCALE]], 0
+; CHECK-NEXT: call void @llvm.assume(i1 [[C3]])
+; CHECK-NEXT: [[C4:%.*]] = icmp sle i8 [[SCALE]], 3
+; CHECK-NEXT: call void @llvm.assume(i1 [[C3]])
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_1]], [[C_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK: then:
+; CHECK-NEXT: [[T_0:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_0]])
+; CHECK-NEXT: [[START_1:%.*]] = mul nsw i8 [[START]], 1
+; CHECK-NEXT: [[T_1:%.*]] = icmp slt i8 [[START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_1]])
+; CHECK-NEXT: [[START_2:%.*]] = mul nsw i8 [[START]], 2
+; CHECK-NEXT: [[T_2:%.*]] = icmp slt i8 [[START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_2]])
+; CHECK-NEXT: [[START_3:%.*]] = mul nsw i8 [[START]], 3
+; CHECK-NEXT: [[T_3:%.*]] = icmp slt i8 [[START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_3]])
+; CHECK-NEXT: [[START_4:%.*]] = mul nsw i8 [[START]], 4
+; CHECK-NEXT: [[C_3:%.*]] = icmp slt i8 [[START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_3]])
+; CHECK-NEXT: ret void
+; CHECK: else:
+; CHECK-NEXT: [[C_4:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_4]])
+; CHECK-NEXT: [[ELSE_START_1:%.*]] = mul nsw i8 [[START]], 1
+; CHECK-NEXT: [[C_5:%.*]] = icmp slt i8 [[ELSE_START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_5]])
+; CHECK-NEXT: [[ELSE_START_2:%.*]] = mul nsw i8 [[START]], 2
+; CHECK-NEXT: [[C_6:%.*]] = icmp slt i8 [[ELSE_START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_6]])
+; CHECK-NEXT: [[ELSE_START_3:%.*]] = mul nsw i8 [[START]], 3
+; CHECK-NEXT: [[C_7:%.*]] = icmp slt i8 [[ELSE_START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_7]])
+; CHECK-NEXT: [[ELSE_START_4:%.*]] = mul nsw i8 [[START]], 4
+; CHECK-NEXT: [[C_8:%.*]] = icmp slt i8 [[ELSE_START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_8]])
+; CHECK-NEXT: ret void
+;
+entry:
+ %mul.3 = mul nsw i8 %start, %scale
+ %c.1 = icmp slt i8 %mul.3, %high
+ %c.2 = icmp sgt i8 %start, 0
+ %c3 = icmp sgt i8 %scale, 0
+ call void @llvm.assume(i1 %c3)
+ %c4 = icmp sle i8 %scale, 3
+ call void @llvm.assume(i1 %c3)
+ %and = and i1 %c.1, %c.2
+ br i1 %and, label %then, label %else
+
+then:
+ %t.0 = icmp slt i8 %start, %high
+ call void @use(i1 %t.0)
+ %start.1 = mul nsw i8 %start, 1
+ %t.1 = icmp slt i8 %start.1, %high
+ call void @use(i1 %t.1)
+ %start.2 = mul nsw i8 %start, 2
+ %t.2 = icmp slt i8 %start.2, %high
+ call void @use(i1 %t.2)
+ %start.3 = mul nsw i8 %start, 3
+ %t.3 = icmp slt i8 %start.3, %high
+ call void @use(i1 %t.3)
+ %start.4 = mul nsw i8 %start, 4
+ %c.3 = icmp slt i8 %start.4, %high
+ call void @use(i1 %c.3)
+ ret void
+
+else:
+ %c.4 = icmp slt i8 %start, %high
+ call void @use(i1 %c.4)
+ %else.start.1 = mul nsw i8 %start, 1
+ %c.5 = icmp slt i8 %else.start.1, %high
+ call void @use(i1 %c.5)
+ %else.start.2 = mul nsw i8 %start, 2
+ %c.6 = icmp slt i8 %else.start.2, %high
+ call void @use(i1 %c.6)
+ %else.start.3 = mul nsw i8 %start, 3
+ %c.7 = icmp slt i8 %else.start.3, %high
+ call void @use(i1 %c.7)
+ %else.start.4 = mul nsw i8 %start, 4
+ %c.8 = icmp slt i8 %else.start.4, %high
+ call void @use(i1 %c.8)
+ ret void
+}
+
+define void @ult_mul_nsw_3_known_positive(i8 %start, i8 %high) {
+; CHECK-LABEL: @ult_mul_nsw_3_known_positive(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[MUL_3:%.*]] = mul nsw i8 [[START:%.*]], 3
+; CHECK-NEXT: [[C_1:%.*]] = icmp ult i8 [[MUL_3]], [[HIGH:%.*]]
+; CHECK-NEXT: [[C_2:%.*]] = icmp ugt i8 [[START]], 0
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_1]], [[C_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[THEN:%.*]], label [[ELSE:%.*]]
+; CHECK: then:
+; CHECK-NEXT: [[T_0:%.*]] = icmp ult i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_0]])
+; CHECK-NEXT: [[START_1:%.*]] = mul nsw i8 [[START]], 1
+; CHECK-NEXT: [[T_1:%.*]] = icmp ult i8 [[START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_1]])
+; CHECK-NEXT: [[START_2:%.*]] = mul nsw i8 [[START]], 2
+; CHECK-NEXT: [[T_2:%.*]] = icmp ult i8 [[START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_2]])
+; CHECK-NEXT: [[START_3:%.*]] = mul nsw i8 [[START]], 3
+; CHECK-NEXT: [[T_3:%.*]] = icmp ult i8 [[START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[T_3]])
+; CHECK-NEXT: [[START_4:%.*]] = mul nsw i8 [[START]], 4
+; CHECK-NEXT: [[C_3:%.*]] = icmp slt i8 [[START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_3]])
+; CHECK-NEXT: ret void
+; CHECK: else:
+; CHECK-NEXT: [[C_4:%.*]] = icmp slt i8 [[START]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_4]])
+; CHECK-NEXT: [[ELSE_START_1:%.*]] = mul nsw i8 [[START]], 1
+; CHECK-NEXT: [[C_5:%.*]] = icmp slt i8 [[ELSE_START_1]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_5]])
+; CHECK-NEXT: [[ELSE_START_2:%.*]] = mul nsw i8 [[START]], 2
+; CHECK-NEXT: [[C_6:%.*]] = icmp slt i8 [[ELSE_START_2]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_6]])
+; CHECK-NEXT: [[ELSE_START_3:%.*]] = mul nsw i8 [[START]], 3
+; CHECK-NEXT: [[C_7:%.*]] = icmp slt i8 [[ELSE_START_3]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_7]])
+; CHECK-NEXT: [[ELSE_START_4:%.*]] = mul nsw i8 [[START]], 4
+; CHECK-NEXT: [[C_8:%.*]] = icmp slt i8 [[ELSE_START_4]], [[HIGH]]
+; CHECK-NEXT: call void @use(i1 [[C_8]])
+; CHECK-NEXT: ret void
+;
+entry:
+ %mul.3 = mul nsw i8 %start, 3
+ %c.1 = icmp ult i8 %mul.3, %high
+ %c.2 = icmp ugt i8 %start, 0
+ %and = and i1 %c.1, %c.2
+ br i1 %and, label %then, label %else
+
+then:
+ %t.0 = icmp ult i8 %start, %high
+ call void @use(i1 %t.0)
+ %start.1 = mul nsw i8 %start, 1
+ %t.1 = icmp ult i8 %start.1, %high
+ call void @use(i1 %t.1)
+ %start.2 = mul nsw i8 %start, 2
+ %t.2 = icmp ult i8 %start.2, %high
+ call void @use(i1 %t.2)
+ %start.3 = mul nsw i8 %start, 3
+ %t.3 = icmp ult i8 %start.3, %high
+ call void @use(i1 %t.3)
+ %start.4 = mul nsw i8 %start, 4
+ %c.3 = icmp slt i8 %start.4, %high
+ call void @use(i1 %c.3)
+ ret void
+
+else:
+ %c.4 = icmp slt i8 %start, %high
+ call void @use(i1 %c.4)
+ %else.start.1 = mul nsw i8 %start, 1
+ %c.5 = icmp slt i8 %else.start.1, %high
+ call void @use(i1 %c.5)
+ %else.start.2 = mul nsw i8 %start, 2
+ %c.6 = icmp slt i8 %else.start.2, %high
+ call void @use(i1 %c.6)
+ %else.start.3 = mul nsw i8 %start, 3
+ %c.7 = icmp slt i8 %else.start.3, %high
+ call void @use(i1 %c.7)
+ %else.start.4 = mul nsw i8 %start, 4
+ %c.8 = icmp slt i8 %else.start.4, %high
+ call void @use(i1 %c.8)
+ ret void
+}
+
+
More information about the llvm-commits
mailing list