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TheRock/compiler/amd-llvm/llvm/test/Other/loop-pass-printer.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

70 lines
1.9 KiB
LLVM

; This test checks -print-after/before on loop passes
; Besides of the loop itself it should be dumping loop pre-header and exits.
;
; RUN: opt < %s 2>&1 -disable-output \
; RUN: -passes='loop(loop-deletion)' -print-before=loop-deletion \
; RUN: | FileCheck %s -check-prefix=DEL
; RUN: opt < %s 2>&1 -disable-output \
; RUN: -passes='require<opt-remark-emit>,loop(loop-unroll-full)' -print-after=loop-unroll-full -filter-print-funcs=bar \
; RUN: | FileCheck %s -check-prefix=BAR
; RUN: opt < %s 2>&1 -disable-output \
; RUN: -passes='require<opt-remark-emit>,loop(loop-unroll-full)' -print-after=loop-unroll-full -filter-print-funcs=foo -print-module-scope \
; RUN: | FileCheck %s -check-prefix=FOO-MODULE
; DEL: IR Dump Before {{Delete dead loops|LoopDeletionPass}}
; DEL: ; Preheader:
; DEL-NEXT: %idx = alloca i32, align 4
; DEL: ; Loop:
; DEL-NEXT: loop:
; DEL: cont:
; DEL: ; Exit blocks
; DEL: done:
; DEL: IR Dump Before {{Delete dead loops|LoopDeletionPass}}
; DEL: ; Preheader:
; DEL-NEXT: br label %loop
; DEL: ; Loop:
; DEL-NEXT: loop:
; DEL: ; Exit blocks
; DEL: end:
; BAR: IR Dump After {{Unroll|LoopFullUnrollPass}}
; BAR: ; Preheader:
; BAR-NEXT: br label %loop
; BAR: ; Loop:
; BAR-NEXT: loop:
; BAR: ; Exit blocks
; BAR: end:
; FOO-MODULE: IR Dump After {{Unroll|LoopFullUnrollPass}} {{.*}}loop
; FOO-MODULE-NEXT: ModuleID =
; FOO-MODULE: define void @foo
; FOO-MODULE: define void @bar
define void @foo(){
%idx = alloca i32, align 4
store i32 0, ptr %idx, align 4
br label %loop
loop:
%1 = load i32, ptr %idx, align 4
%2 = icmp slt i32 %1, 10
br i1 %2, label %cont, label %done
cont:
%3 = load i32, ptr %idx, align 4
%4 = add nsw i32 %3, 1
store i32 %4, ptr %idx, align 4
br label %loop
done:
ret void
}
define void @bar(){
br label %loop
loop:
br i1 1, label %loop, label %end
end:
ret void
}