[llvm] 54e5107 - [InstCombine] add tests for select of div/rem with common operand; NFC

Sanjay Patel via llvm-commits llvm-commits at lists.llvm.org
Thu Feb 23 12:32:46 PST 2023


Author: Sanjay Patel
Date: 2023-02-23T15:32:39-05:00
New Revision: 54e51074989333a9d512b962851eaabdc003e6be

URL: https://github.com/llvm/llvm-project/commit/54e51074989333a9d512b962851eaabdc003e6be
DIFF: https://github.com/llvm/llvm-project/commit/54e51074989333a9d512b962851eaabdc003e6be.diff

LOG: [InstCombine] add tests for select of div/rem with common operand; NFC

issue #60906

Added: 
    llvm/test/Transforms/InstCombine/select-divrem.ll

Modified: 
    

Removed: 
    


################################################################################
diff  --git a/llvm/test/Transforms/InstCombine/select-divrem.ll b/llvm/test/Transforms/InstCombine/select-divrem.ll
new file mode 100644
index 0000000000000..0c81161c9cbc6
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/select-divrem.ll
@@ -0,0 +1,194 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -passes=instcombine -S | FileCheck %s
+
+define i5 @sdiv_common_divisor(i1 %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @sdiv_common_divisor(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = sdiv i5 [[SEL_V]], [[X:%.*]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = sdiv i5 %y, %x
+  %r2 = sdiv i5 %z, %x
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @srem_common_divisor(i1 %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @srem_common_divisor(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = srem i5 [[SEL_V]], [[X:%.*]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = srem i5 %y, %x
+  %r2 = srem i5 %z, %x
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @udiv_common_divisor(i1 %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @udiv_common_divisor(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = udiv i5 [[SEL_V]], [[X:%.*]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = udiv i5 %y, %x
+  %r2 = udiv i5 %z, %x
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @urem_common_divisor(i1 %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @urem_common_divisor(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = urem i5 [[SEL_V]], [[X:%.*]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = urem i5 %y, %x
+  %r2 = urem i5 %z, %x
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @sdiv_common_dividend(i1 %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @sdiv_common_dividend(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = sdiv i5 [[X:%.*]], [[SEL_V]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = sdiv i5 %x, %y
+  %r2 = sdiv i5 %x, %z
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @srem_common_dividend(i1 %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @srem_common_dividend(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = srem i5 [[X:%.*]], [[SEL_V]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = srem i5 %x, %y
+  %r2 = srem i5 %x, %z
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @udiv_common_dividend(i1 %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @udiv_common_dividend(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = udiv i5 [[X:%.*]], [[SEL_V]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = udiv i5 %x, %y
+  %r2 = udiv i5 %x, %z
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @urem_common_dividend(i1 %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @urem_common_dividend(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = urem i5 [[X:%.*]], [[SEL_V]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = urem i5 %x, %y
+  %r2 = urem i5 %x, %z
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @sdiv_common_divisor_defined_cond(i1 noundef %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @sdiv_common_divisor_defined_cond(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = sdiv i5 [[SEL_V]], [[X:%.*]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = sdiv i5 %y, %x
+  %r2 = sdiv i5 %z, %x
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @srem_common_divisor_defined_cond(i1 noundef %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @srem_common_divisor_defined_cond(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = srem i5 [[SEL_V]], [[X:%.*]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = srem i5 %y, %x
+  %r2 = srem i5 %z, %x
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @udiv_common_divisor_defined_cond(i1 noundef %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @udiv_common_divisor_defined_cond(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = udiv i5 [[SEL_V]], [[X:%.*]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = udiv i5 %y, %x
+  %r2 = udiv i5 %z, %x
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @urem_common_divisor_defined_cond(i1 noundef %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @urem_common_divisor_defined_cond(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = urem i5 [[SEL_V]], [[X:%.*]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = urem i5 %y, %x
+  %r2 = urem i5 %z, %x
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @sdiv_common_dividend_defined_cond(i1 noundef %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @sdiv_common_dividend_defined_cond(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = sdiv i5 [[X:%.*]], [[SEL_V]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = sdiv i5 %x, %y
+  %r2 = sdiv i5 %x, %z
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @srem_common_dividend_defined_cond(i1 noundef %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @srem_common_dividend_defined_cond(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = srem i5 [[X:%.*]], [[SEL_V]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = srem i5 %x, %y
+  %r2 = srem i5 %x, %z
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @udiv_common_dividend_defined_cond(i1 noundef %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @udiv_common_dividend_defined_cond(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = udiv i5 [[X:%.*]], [[SEL_V]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = udiv i5 %x, %y
+  %r2 = udiv i5 %x, %z
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}
+
+define i5 @urem_common_dividend_defined_cond(i1 noundef %b, i5 %x, i5 %y, i5 %z) {
+; CHECK-LABEL: @urem_common_dividend_defined_cond(
+; CHECK-NEXT:    [[SEL_V:%.*]] = select i1 [[B:%.*]], i5 [[Z:%.*]], i5 [[Y:%.*]]
+; CHECK-NEXT:    [[SEL:%.*]] = urem i5 [[X:%.*]], [[SEL_V]]
+; CHECK-NEXT:    ret i5 [[SEL]]
+;
+  %r1 = urem i5 %x, %y
+  %r2 = urem i5 %x, %z
+  %sel = select i1 %b, i5 %r2, i5 %r1
+  ret i5 %sel
+}


        


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