[llvm] 071dbae - [FuncSpec] Add minsize test. NFC.

[Sjoerd Meijer via llvm-commits]

Author: Sjoerd Meijer
Date: 2021-06-21T15:21:09+01:00
New Revision: 071dbaec875926a9ce03f82446096bfc28eb3c02

URL: https://github.com/llvm/llvm-project/commit/071dbaec875926a9ce03f82446096bfc28eb3c02
DIFF: https://github.com/llvm/llvm-project/commit/071dbaec875926a9ce03f82446096bfc28eb3c02.diff

LOG: [FuncSpec] Add minsize test. NFC.

Added: 
    llvm/test/Transforms/FunctionSpecialization/function-specialization-minsize.ll

Modified: 
    

Removed: 
    


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diff  --git a/llvm/test/Transforms/FunctionSpecialization/function-specialization-minsize.ll b/llvm/test/Transforms/FunctionSpecialization/function-specialization-minsize.ll
new file mode 100644
index 0000000000000..8fc5438b2e42c
--- /dev/null
+++ b/llvm/test/Transforms/FunctionSpecialization/function-specialization-minsize.ll
@@ -0,0 +1,39 @@
+; RUN: opt -function-specialization -S < %s | FileCheck %s
+
+; CHECK-NOT: @compute.1
+; CHECK-NOT: @compute.2
+
+define i64 @main(i64 %x, i1 %flag) {
+entry:
+  br i1 %flag, label %plus, label %minus
+
+plus:
+  %tmp0 = call i64 @compute(i64 %x, i64 (i64)* @plus)
+  br label %merge
+
+minus:
+  %tmp1 = call i64 @compute(i64 %x, i64 (i64)* @minus)
+  br label %merge
+
+merge:
+  %tmp2 = phi i64 [ %tmp0, %plus ], [ %tmp1, %minus]
+  ret i64 %tmp2
+}
+
+define internal i64 @compute(i64 %x, i64 (i64)* %binop) minsize {
+entry:
+  %tmp0 = call i64 %binop(i64 %x)
+  ret i64 %tmp0
+}
+
+define internal i64 @plus(i64 %x) {
+entry:
+  %tmp0 = add i64 %x, 1
+  ret i64 %tmp0
+}
+
+define internal i64 @minus(i64 %x) {
+entry:
+  %tmp0 = sub i64 %x, 1
+  ret i64 %tmp0
+}