[llvm] 516ff1d - [SCCP] Add test for range metadata (NFC)

[Nikita Popov via llvm-commits]

Author: Nikita Popov
Date: 2020-07-05T21:41:04+02:00
New Revision: 516ff1d4baee28b1911737e47b42973567adf8ff

URL: https://github.com/llvm/llvm-project/commit/516ff1d4baee28b1911737e47b42973567adf8ff
DIFF: https://github.com/llvm/llvm-project/commit/516ff1d4baee28b1911737e47b42973567adf8ff.diff

LOG: [SCCP] Add test for range metadata (NFC)

Added: 
    llvm/test/Transforms/SCCP/metadata.ll

Modified: 
    

Removed: 
    


################################################################################
diff  --git a/llvm/test/Transforms/SCCP/metadata.ll b/llvm/test/Transforms/SCCP/metadata.ll
new file mode 100644
index 000000000000..afc66df58676
--- /dev/null
+++ b/llvm/test/Transforms/SCCP/metadata.ll
@@ -0,0 +1,88 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -ipsccp -S | FileCheck %s
+
+declare void @use(i1)
+declare i32 @get_i32()
+
+define void @load_range(i32* %p) {
+; CHECK-LABEL: @load_range(
+; CHECK-NEXT:    [[V:%.*]] = load i32, i32* [[P:%.*]], align 4, !range !0
+; CHECK-NEXT:    [[C1:%.*]] = icmp ult i32 [[V]], 10
+; CHECK-NEXT:    call void @use(i1 [[C1]])
+; CHECK-NEXT:    [[C2:%.*]] = icmp ult i32 [[V]], 9
+; CHECK-NEXT:    call void @use(i1 [[C2]])
+; CHECK-NEXT:    [[C3:%.*]] = icmp ugt i32 [[V]], 9
+; CHECK-NEXT:    call void @use(i1 [[C3]])
+; CHECK-NEXT:    [[C4:%.*]] = icmp ugt i32 [[V]], 8
+; CHECK-NEXT:    call void @use(i1 [[C4]])
+; CHECK-NEXT:    ret void
+;
+  %v = load i32, i32* %p, !range !{i32 0, i32 10}
+  %c1 = icmp ult i32 %v, 10
+  call void @use(i1 %c1)
+  %c2 = icmp ult i32 %v, 9
+  call void @use(i1 %c2)
+  %c3 = icmp ugt i32 %v, 9
+  call void @use(i1 %c3)
+  %c4 = icmp ugt i32 %v, 8
+  call void @use(i1 %c4)
+  ret void
+}
+
+define void @load_nonnull(i32** %p) {
+; CHECK-LABEL: @load_nonnull(
+; CHECK-NEXT:    [[V:%.*]] = load i32*, i32** [[P:%.*]], align 8, !nonnull !1
+; CHECK-NEXT:    [[C1:%.*]] = icmp ne i32* [[V]], null
+; CHECK-NEXT:    call void @use(i1 [[C1]])
+; CHECK-NEXT:    ret void
+;
+  %v = load i32*, i32** %p, !nonnull !{}
+  %c1 = icmp ne i32* %v, null
+  call void @use(i1 %c1)
+  ret void
+}
+
+define void @call_range(i32* %p) {
+; CHECK-LABEL: @call_range(
+; CHECK-NEXT:    [[V:%.*]] = call i32 @get_i32(), !range !0
+; CHECK-NEXT:    [[C1:%.*]] = icmp ult i32 [[V]], 10
+; CHECK-NEXT:    call void @use(i1 [[C1]])
+; CHECK-NEXT:    [[C2:%.*]] = icmp ult i32 [[V]], 9
+; CHECK-NEXT:    call void @use(i1 [[C2]])
+; CHECK-NEXT:    [[C3:%.*]] = icmp ugt i32 [[V]], 9
+; CHECK-NEXT:    call void @use(i1 [[C3]])
+; CHECK-NEXT:    [[C4:%.*]] = icmp ugt i32 [[V]], 8
+; CHECK-NEXT:    call void @use(i1 [[C4]])
+; CHECK-NEXT:    ret void
+;
+  %v = call i32 @get_i32(), !range !{i32 0, i32 10}
+  %c1 = icmp ult i32 %v, 10
+  call void @use(i1 %c1)
+  %c2 = icmp ult i32 %v, 9
+  call void @use(i1 %c2)
+  %c3 = icmp ugt i32 %v, 9
+  call void @use(i1 %c3)
+  %c4 = icmp ugt i32 %v, 8
+  call void @use(i1 %c4)
+  ret void
+}
+
+define internal i1 @ip_cmp_range(i32 %v) {
+; CHECK-LABEL: @ip_cmp_range(
+; CHECK-NEXT:    [[C:%.*]] = icmp ult i32 [[V:%.*]], 10
+; CHECK-NEXT:    ret i1 [[C]]
+;
+  %c = icmp ult i32 %v, 10
+  ret i1 %c
+}
+
+define i1 @ip_load_range(i32* %p) {
+; CHECK-LABEL: @ip_load_range(
+; CHECK-NEXT:    [[V:%.*]] = load i32, i32* [[P:%.*]], align 4, !range !0
+; CHECK-NEXT:    [[C:%.*]] = call i1 @ip_cmp_range(i32 [[V]])
+; CHECK-NEXT:    ret i1 [[C]]
+;
+  %v = load i32, i32* %p, !range !{i32 0, i32 10}
+  %c = call i1 @ip_cmp_range(i32 %v)
+  ret i1 %c
+}