[llvm] 99d6e31 - [NFC][SROA] Add C++'s `std::clamp()` testcase from PR47271/PR49909

[Roman Lebedev via llvm-commits]

Author: Roman Lebedev
Date: 2021-04-10T00:56:00+03:00
New Revision: 99d6e31e0bd02d484c213a7446fd707c62dec45b

URL: https://github.com/llvm/llvm-project/commit/99d6e31e0bd02d484c213a7446fd707c62dec45b
DIFF: https://github.com/llvm/llvm-project/commit/99d6e31e0bd02d484c213a7446fd707c62dec45b.diff

LOG: [NFC][SROA] Add C++'s `std::clamp()` testcase from PR47271/PR49909

Added: 
    llvm/test/Transforms/SROA/std-clamp.ll

Modified: 
    

Removed: 
    


################################################################################
diff  --git a/llvm/test/Transforms/SROA/std-clamp.ll b/llvm/test/Transforms/SROA/std-clamp.ll
new file mode 100644
index 0000000000000..5619042522884
--- /dev/null
+++ b/llvm/test/Transforms/SROA/std-clamp.ll
@@ -0,0 +1,35 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -sroa -S | FileCheck %s
+
+target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
+
+define float @_Z8stdclampfff(float %x, float %lo, float %hi) {
+; CHECK-LABEL: @_Z8stdclampfff(
+; CHECK-NEXT:  bb:
+; CHECK-NEXT:    [[I:%.*]] = alloca float, align 4
+; CHECK-NEXT:    [[I3:%.*]] = alloca float, align 4
+; CHECK-NEXT:    [[I4:%.*]] = alloca float, align 4
+; CHECK-NEXT:    store float [[X:%.*]], float* [[I]], align 4
+; CHECK-NEXT:    store float [[LO:%.*]], float* [[I3]], align 4
+; CHECK-NEXT:    store float [[HI:%.*]], float* [[I4]], align 4
+; CHECK-NEXT:    [[I5:%.*]] = fcmp fast olt float [[X]], [[LO]]
+; CHECK-NEXT:    [[I6:%.*]] = fcmp fast olt float [[HI]], [[X]]
+; CHECK-NEXT:    [[I7:%.*]] = select i1 [[I6]], float* [[I4]], float* [[I]]
+; CHECK-NEXT:    [[I8:%.*]] = select i1 [[I5]], float* [[I3]], float* [[I7]]
+; CHECK-NEXT:    [[I9:%.*]] = load float, float* [[I8]], align 4
+; CHECK-NEXT:    ret float [[I9]]
+;
+bb:
+  %i = alloca float, align 4
+  %i3 = alloca float, align 4
+  %i4 = alloca float, align 4
+  store float %x, float* %i, align 4
+  store float %lo, float* %i3, align 4
+  store float %hi, float* %i4, align 4
+  %i5 = fcmp fast olt float %x, %lo
+  %i6 = fcmp fast olt float %hi, %x
+  %i7 = select i1 %i6, float* %i4, float* %i
+  %i8 = select i1 %i5, float* %i3, float* %i7
+  %i9 = load float, float* %i8, align 4
+  ret float %i9
+}