Add -pass-remarks flag to 'opt'.
Summary:
This adds support in 'opt' to filter pass remarks emitted by
optimization passes. A new flag -pass-remarks specifies which
passes should emit a diagnostic when LLVMContext::emitOptimizationRemark
is invoked.
This will allow the front end to simply pass along the regular
expression from its own -Rpass flag when launching the backend.
Depends on D3227.
Reviewers: qcolombet
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D3291
llvm-svn: 205775
diff --git a/llvm/test/Other/optimization-remarks-inline.ll b/llvm/test/Other/optimization-remarks-inline.ll
new file mode 100644
index 0000000..4870c17
--- /dev/null
+++ b/llvm/test/Other/optimization-remarks-inline.ll
@@ -0,0 +1,33 @@
+; RUN: opt < %s -inline -pass-remarks='inline' -S 2>&1 | FileCheck %s
+; RUN: opt < %s -inline -pass-remarks='inl.*' -S 2>&1 | FileCheck %s
+; RUN: opt < %s -inline -pass-remarks='vector' -pass-remarks='inl' -S 2>&1 | FileCheck %s
+; RUN: opt < %s -inline -pass-remarks='vector' -S 2>&1 | FileCheck --check-prefix=REMARKS %s
+; RUN: opt < %s -inline -S 2>&1 | FileCheck --check-prefix=REMARKS %s
+; RUN: not opt < %s -pass-remarks='(' 2>&1 | FileCheck --check-prefix=BAD-REGEXP %s
+
+define i32 @foo(i32 %x, i32 %y) #0 {
+entry:
+ %x.addr = alloca i32, align 4
+ %y.addr = alloca i32, align 4
+ store i32 %x, i32* %x.addr, align 4
+ store i32 %y, i32* %y.addr, align 4
+ %0 = load i32* %x.addr, align 4
+ %1 = load i32* %y.addr, align 4
+ %add = add nsw i32 %0, %1
+ ret i32 %add
+}
+
+define i32 @bar(i32 %j) #0 {
+entry:
+ %j.addr = alloca i32, align 4
+ store i32 %j, i32* %j.addr, align 4
+ %0 = load i32* %j.addr, align 4
+ %1 = load i32* %j.addr, align 4
+ %sub = sub nsw i32 %1, 2
+ %call = call i32 @foo(i32 %0, i32 %sub)
+; CHECK: foo inlined into bar
+; REMARKS-NOT: foo inlined into bar
+ ret i32 %call
+}
+
+; BAD-REGEXP: Invalid regular expression '(' in -pass-remarks: