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llvm-mirror/test/DebugInfo/debugify-each.ll
Vedant Kumar 87714cc468 [Debugify] Strip added metadata in the -debugify-each pipeline
Summary:
Share logic to strip debugify metadata between the IR and MIR level
debugify passes. This makes it simpler to hunt for bugs by diffing IR
with vs. without -debugify-each turned on.

As a drive-by, fix an issue causing CallGraphNodes to become invalid
when a dead llvm.dbg.value prototype is deleted.

Reviewers: dsanders, aprantl

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77915
2020-04-13 10:55:17 -07:00

48 lines
1.7 KiB
LLVM

; RUN: opt -debugify-each -O3 -S -o /dev/null < %s 2> %t
; RUN: FileCheck %s -input-file=%t -check-prefix=MODULE-PASS
; RUN: FileCheck %s -input-file=%t -check-prefix=FUNCTION-PASS
; RUN: opt -enable-debugify -debugify-each -O3 -S -o /dev/null < %s 2> %t
; RUN: FileCheck %s -input-file=%t -check-prefix=MODULE-PASS
; RUN: FileCheck %s -input-file=%t -check-prefix=FUNCTION-PASS
; RUN: opt -debugify-each -instrprof -instrprof -sroa -sccp -S -o /dev/null < %s 2> %t
; RUN: FileCheck %s -input-file=%t -check-prefix=MODULE-PASS
; RUN: FileCheck %s -input-file=%t -check-prefix=FUNCTION-PASS
; Verify that debugify each can be safely used with piping
; RUN: opt -debugify-each -O1 < %s | opt -O2 -o /dev/null
; Check that the quiet mode emits no messages.
; RUN: opt -disable-output -debugify-quiet -debugify-each -O1 < %s 2>&1 | count 0
; Check that stripped textual IR compares equal before and after applying
; debugify.
; RUN: opt -O1 < %s -S -o %t.before
; RUN: opt -O1 -debugify-each < %s -S -o %t.after
; RUN: diff %t.before %t.after
; Check that stripped IR compares equal before and after applying debugify.
; RUN: opt -O1 < %s | llvm-dis -o %t.before
; RUN: opt -O1 -debugify-each < %s | llvm-dis -o %t.after
; RUN: diff %t.before %t.after
define void @foo(i32 %arg) {
call i32 asm "bswap $0", "=r,r"(i32 %arg)
ret void
}
define void @bar() {
ret void
}
; Verify that the module & function (check-)debugify passes run at least twice.
; MODULE-PASS: CheckModuleDebugify [{{.*}}]
; MODULE-PASS: CheckModuleDebugify [{{.*}}]
; FUNCTION-PASS: CheckFunctionDebugify [{{.*}}]
; FUNCTION-PASS: CheckFunctionDebugify [{{.*}}]
; FUNCTION-PASS: CheckFunctionDebugify [{{.*}}]
; FUNCTION-PASS: CheckFunctionDebugify [{{.*}}]