5e0a06b34d
Moving these into the middle-end pipeline will allow for additional optimization of the expansion result, such as CSE of redundant loads (c.f. https://godbolt.org/z/bEna4Md9r). For now, we conservatively place the passes at the end of the middle-end pipeline, so we mostly don't benefit from additional optimizations yet. The pipeline position will be moved in a future change. This builds on work done by legrosbuffle in https://reviews.llvm.org/D60318. --------- Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
45 lines
2.6 KiB
LLVM
45 lines
2.6 KiB
LLVM
; NVPTX customizes the list of passes so the test cannot find what it expects
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; XFAIL: target=nvptx{{.*}}
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; Note: -verify-machineinstrs is used in order to make this test compatible with EXPENSIVE_CHECKS.
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; RUN: llc < %s -debug-pass=Structure -stop-after=loop-reduce -verify-machineinstrs -o /dev/null 2>&1 \
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; RUN: | FileCheck %s -check-prefix=STOP-AFTER
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; STOP-AFTER: -loop-reduce
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; STOP-AFTER: Dominator Tree Construction
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; STOP-AFTER: Loop Strength Reduction
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; STOP-AFTER-NEXT: Verify generated machine code
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; STOP-AFTER-NEXT: Lazy Machine Block Frequency Analysis
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; STOP-AFTER-NEXT: Machine Optimization Remark Emitter
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; STOP-AFTER-NEXT: Stack Frame Layout Analysis
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; STOP-AFTER-NEXT: MIR Printing Pass
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; RUN: llc < %s -debug-pass=Structure -stop-before=loop-reduce -o /dev/null 2>&1 | FileCheck %s -check-prefix=STOP-BEFORE
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; STOP-BEFORE-NOT: -loop-reduce
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; STOP-BEFORE: Dominator Tree Construction
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; STOP-BEFORE-NOT: Loop Strength Reduction
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; RUN: llc < %s -debug-pass=Structure -start-after=loop-reduce -o /dev/null 2>&1 | FileCheck %s -check-prefix=START-AFTER
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; START-AFTER: -gc-lowering
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; START-AFTER: FunctionPass Manager
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; START-AFTER-NEXT: Lower Garbage Collection Instructions
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; RUN: llc < %s -debug-pass=Structure -start-before=loop-reduce -o /dev/null 2>&1 | FileCheck %s -check-prefix=START-BEFORE
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; START-BEFORE: -machine-branch-prob -regalloc-evict -regalloc-priority -domtree
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; START-BEFORE: FunctionPass Manager
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; START-BEFORE: Loop Strength Reduction
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; START-BEFORE-NEXT: {{Loop Terminator Folding|Lower Garbage Collection Instructions}}
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; RUN: not llc < %s -start-before=nonexistent -o /dev/null 2>&1 | FileCheck %s -check-prefix=NONEXISTENT-START-BEFORE
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; RUN: not llc < %s -stop-before=nonexistent -o /dev/null 2>&1 | FileCheck %s -check-prefix=NONEXISTENT-STOP-BEFORE
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; RUN: not llc < %s -start-after=nonexistent -o /dev/null 2>&1 | FileCheck %s -check-prefix=NONEXISTENT-START-AFTER
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; RUN: not llc < %s -stop-after=nonexistent -o /dev/null 2>&1 | FileCheck %s -check-prefix=NONEXISTENT-STOP-AFTER
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; NONEXISTENT-START-BEFORE: "nonexistent" pass is not registered.
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; NONEXISTENT-STOP-BEFORE: "nonexistent" pass is not registered.
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; NONEXISTENT-START-AFTER: "nonexistent" pass is not registered.
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; NONEXISTENT-STOP-AFTER: "nonexistent" pass is not registered.
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; RUN: not llc < %s -start-before=loop-reduce -start-after=loop-reduce -o /dev/null 2>&1 | FileCheck %s -check-prefix=DOUBLE-START
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; RUN: not llc < %s -stop-before=loop-reduce -stop-after=loop-reduce -o /dev/null 2>&1 | FileCheck %s -check-prefix=DOUBLE-STOP
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; DOUBLE-START: start-before and start-after specified!
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; DOUBLE-STOP: stop-before and stop-after specified!
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