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5b6a26ccdd
print-after-all is useful for diffing IR between two passes. When one of the two is a function pass, and the other is a loop pass, the diff becomes useless. Add an option which prints the entire function for loop passes.
76 lines
2.2 KiB
LLVM
76 lines
2.2 KiB
LLVM
; This test documents how the IR dumped for loop passes differs with -print-loop-func-scope
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; and -print-module-scope
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; - Without -print-loop-func-scope, dumps only the loop, with 3 sections- preheader,
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; loop, and exit blocks
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; - With -print-loop-func-scope, dumps only the function which contains the loop
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; - With -print-module-scope, dumps the entire module containing the loop, and disregards
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; the -print-loop-func-scope flag.
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; RUN: opt < %s 2>&1 -disable-output \
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; RUN: -passes=licm -print-after=licm \
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; RUN: | FileCheck %s -check-prefix=VANILLA
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; RUN: opt < %s 2>&1 -disable-output \
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; RUN: -passes=licm -print-after=licm -print-loop-func-scope \
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; RUN: | FileCheck %s -check-prefix=LOOPFUNC
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; RUN: opt < %s 2>&1 -disable-output \
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; RUN: -passes=licm -print-after=licm -print-module-scope \
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; RUN: | FileCheck %s -check-prefix=MODULE
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; RUN: opt < %s 2>&1 -disable-output \
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; RUN: -passes=licm -print-after=licm -print-module-scope -print-loop-func-scope\
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; RUN: | FileCheck %s -check-prefix=MODULEWITHLOOP
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; VANILLA: IR Dump After LICMPass
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; VANILLA-NOT: define void @foo
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; VANILLA: Preheader:
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; VANILLA: Loop:
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; VANILLA: Exit blocks
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; LOOPFUNC: IR Dump After LICMPass
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; LOOPFUNC: (loop:
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; LOOPFUNC: define void @foo
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; LOOPFUNC-NOT: Preheader:
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; LOOPFUNC-NOT: Loop:
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; LOOPFUNC-NOT: Exit blocks
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; MODULE: IR Dump After LICMPass
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; MODULE: ModuleID =
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; MODULE: define void @foo
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; MODULE-NOT: Preheader:
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; MODULE-NOT: Loop:
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; MODULE-NOT: Exit blocks
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; MODULE: define void @bar
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; MODULE: declare void @baz(i32)
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; MODULEWITHLOOP: IR Dump After LICMPass
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; MODULEWITHLOOP: ModuleID =
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; MODULEWITHLOOP: define void @foo
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; MODULEWITHLOOP-NOT: Preheader:
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; MODULEWITHLOOP-NOT: Loop:
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; MODULEWITHLOOP-NOT: Exit blocks
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; MODULEWITHLOOP: define void @bar
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; MODULEWITHLOOP: declare void @baz(i32)
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define void @foo(i32 %n) {
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entry:
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br label %loop_cond
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loop_cond:
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%i = phi i32 [ 0, %entry ], [ %i_next, %loop_body ]
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%cmp = icmp slt i32 %i, %n
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br i1 %cmp, label %loop_body, label %loop_end
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loop_body:
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call void @baz(i32 %i)
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%i_next = add i32 %i, 1
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br label %loop_cond
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loop_end:
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ret void
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}
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define void @bar() {
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ret void
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}
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declare void @baz(i32)
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