size-remarks.ll
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; Ensure that IR count remarks in the legacy pass manager work.
; What this test should check for:
; * Positive, nonzero sizes before/after for whole-module remarks
; (It's okay to have nonzero sizes in per-function remarks, since a function
; can be created/destroyed by a pass.)
; * Nonzero deltas
; * Sizes are being tracked properly across multiple remarks. E.g, if we have
; original_count_1, final_count_1, and
; original_count_2, final_count_2,
; Then original_count_2 == final_count_1.
; For these remarks, the "function" field in the YAML file doesn't matter.
; Each of the testcases work by combining the output remarks with the
; optimization record emit using -pass-remarks-output. This is done to prevent
; test flakiness wrt instruction counts, but also ensure that the output values
; are equivalent in both outputs.
; RUN: opt < %s -inline -pass-remarks-analysis='size-info' \
; RUN: -pass-remarks-output=%t.yaml -S -o /dev/null 2> %t; \
; RUN: cat %t %t.yaml | FileCheck %s -check-prefix=CGSCC
; CGSCC: remark: <unknown>:0:0: Function Integration/Inlining:
; CGSCC-SAME: IR instruction count changed from
; CGSCC-SAME: [[ORIG:[1-9][0-9]*]] to [[FINAL:[1-9][0-9]*]];
; CGSCC-SAME: Delta: [[DELTA:-?[1-9][0-9]*]]
; CGSCC-NEXT: remark: <unknown>:0:0: Function Integration/Inlining:
; CGSCC-SAME: Function: bar: IR instruction count changed from
; CGSCC-SAME: [[ORIGFN:[1-9][0-9]*]] to [[FINALFN:[0-9][0-9]*]];
; CGSCC-SAME: Delta: [[DELTAFN:-?[1-9][0-9]*]]
; CGSCC-NEXT: ---
; CGSCC-DAG: !Analysis
; CGSCC-NEXT: Pass: size-info
; CGSCC-NEXT: Name: IRSizeChange
; CGSCC-NEXT: Function:
; CGSCC-NEXT: Args:
; CGSCC-NEXT: - Pass: 'Function Integration/Inlining'
; CGSCC-NEXT: - String: ': IR instruction count changed from '
; CGSCC-NEXT: - IRInstrsBefore: '[[ORIG]]'
; CGSCC-NEXT: - String: ' to '
; CGSCC-NEXT: - IRInstrsAfter: '[[FINAL]]'
; CGSCC-NEXT: - String: '; Delta: '
; CGSCC-NEXT: - DeltaInstrCount: '[[DELTA]]'
; CGSCC-DAG: --- !Analysis
; CGSCC-NEXT: Pass: size-info
; CGSCC-NEXT: Name: FunctionIRSizeChange
; CGSCC-NEXT: Function:
; CGSCC-NEXT: Args:
; CGSCC-NEXT: - Pass: 'Function Integration/Inlining'
; CGSCC-NEXT: - String: ': Function: '
; CGSCC-NEXT: - Function: bar
; CGSCC-NEXT: - String: ': IR instruction count changed from '
; CGSCC-NEXT: - IRInstrsBefore: '[[ORIGFN]]'
; CGSCC-NEXT: - String: ' to '
; CGSCC-NEXT: - IRInstrsAfter: '[[FINALFN]]'
; CGSCC-NEXT: - String: '; Delta: '
; CGSCC-NEXT: - DeltaInstrCount: '[[DELTAFN]]'
; CGSCC-NEXT: ...
; RUN: opt < %s -instcombine -pass-remarks-analysis='size-info' \
; RUN:-pass-remarks-output=%t.yaml -S -o /dev/null 2> %t; \
; RUN: cat %t %t.yaml | FileCheck %s -check-prefix=FUNC
; FUNC: remark: <unknown>:0:0: Combine redundant instructions:
; FUNC-SAME: IR instruction count changed from
; FUNC-SAME: [[SIZE1:[1-9][0-9]*]] to [[SIZE2:[0-9][0-9]*]];
; FUNC-SAME: Delta: [[DELTA1:-?[1-9][0-9]*]]
; FUNC-NEXT: remark: <unknown>:0:0: Combine redundant instructions: Function:
; FUNC-SAME: foo: IR instruction count changed from
; FUNC-SAME: [[FOOSIZE1:[1-9][0-9]*]] to [[FOOSIZE2:[0-9][0-9]*]];
; FUNC-SAME: Delta: [[DELTAFOO:-?[1-9][0-9]*]]
; FUNC-NEXT: remark: <unknown>:0:0: Combine redundant instructions:
; FUNC-SAME: IR instruction count changed from
; FUNC-SAME: [[SIZE2]] to [[SIZE3:[1-9][0-9]*]];
; FUNC-SAME: Delta: [[DELTA2:-?[1-9][0-9]*]]
; FUNC-NEXT: remark: <unknown>:0:0: Combine redundant instructions: Function:
; FUNC-SAME: bar: IR instruction count changed from
; FUNC-SAME: [[BARSIZE1:[1-9][0-9]*]] to [[BARSIZE2:[0-9][0-9]*]];
; FUNC-SAME: Delta: [[DELTABAR:-?[1-9][0-9]*]]
; FUNC-NEXT: ---
; FUNC-DAG: !Analysis
; FUNC-NEXT: Pass: size-info
; FUNC-NEXT: Name: IRSizeChange
; FUNC-NEXT: Function:
; FUNC-NEXT: Args:
; FUNC-NEXT: - Pass: Combine redundant instructions
; FUNC-NEXT: - String: ': IR instruction count changed from '
; FUNC-NEXT: - IRInstrsBefore: '[[SIZE1]]'
; FUNC-NEXT: - String: ' to '
; FUNC-NEXT: - IRInstrsAfter: '[[SIZE2]]'
; FUNC-NEXT: - String: '; Delta: '
; FUNC-NEXT: - DeltaInstrCount: '[[DELTA1]]'
; FUNC-DAG: --- !Analysis
; FUNC-NEXT: Pass: size-info
; FUNC-NEXT: Name: FunctionIRSizeChange
; FUNC-NEXT: Function:
; FUNC-NEXT: Args:
; FUNC-NEXT: - Pass: Combine redundant instructions
; FUNC-NEXT: - String: ': Function: '
; FUNC-NEXT: - Function: foo
; FUNC-NEXT: - String: ': IR instruction count changed from '
; FUNC-NEXT: - IRInstrsBefore: '[[FOOSIZE1]]'
; FUNC-NEXT: - String: ' to '
; FUNC-NEXT: - IRInstrsAfter: '[[FOOSIZE2]]'
; FUNC-NEXT: - String: '; Delta: '
; FUNC-NEXT: - DeltaInstrCount: '[[DELTAFOO]]'
; FUNC: --- !Analysis
; FUNC-NEXT: Pass: size-info
; FUNC-NEXT: Name: IRSizeChange
; FUNC-NEXT: Function:
; FUNC-NEXT: Args:
; FUNC-NEXT: - Pass: Combine redundant instructions
; FUNC-NEXT: - String: ': IR instruction count changed from '
; FUNC-NEXT: - IRInstrsBefore: '[[SIZE2]]'
; FUNC-NEXT: - String: ' to '
; FUNC-NEXT: - IRInstrsAfter: '[[SIZE3]]'
; FUNC-NEXT: - String: '; Delta: '
; FUNC-NEXT: - DeltaInstrCount: '[[DELTA2]]'
; FUNC-DAG: --- !Analysis
; FUNC-NEXT: Pass: size-info
; FUNC-NEXT: Name: FunctionIRSizeChange
; FUNC-NEXT: Function:
; FUNC-NEXT: Args:
; FUNC-NEXT: - Pass: Combine redundant instructions
; FUNC-NEXT: - String: ': Function: '
; FUNC-NEXT: - Function: bar
; FUNC-NEXT: - String: ': IR instruction count changed from '
; FUNC-NEXT: - IRInstrsBefore: '[[BARSIZE1]]'
; FUNC-NEXT: - String: ' to '
; FUNC-NEXT: - IRInstrsAfter: '[[BARSIZE2]]'
; FUNC-NEXT: - String: '; Delta: '
; FUNC-NEXT: - DeltaInstrCount: '[[DELTABAR]]'
; RUN: opt < %s -globaldce -pass-remarks-analysis='size-info' \
; RUN: -pass-remarks-output=%t.yaml -S -o /dev/null 2> %t; \
; RUN: cat %t %t.yaml | FileCheck %s -check-prefix=MODULE
; MODULE: remark:
; MODULE-SAME: Dead Global Elimination:
; MODULE-SAME: IR instruction count changed from
; MODULE-SAME: [[ORIG:[1-9][0-9]*]] to [[FINAL:[1-9][0-9]*]];
; MODULE-SAME: Delta: [[DELTA:-?[1-9][0-9]*]]
; MODULE-NEXT: remark:
; MODULE-SAME: Dead Global Elimination: Function: pluto:
; MODULE-SAME: IR instruction count changed from [[ORIGFN:[1-9][0-9]*]] to
; MODULE-SAME: [[FINALFN:[0-9][0-9]*]]; Delta: [[DELTAFN:-?[1-9][0-9]*]]
; MODULE-NEXT: ---
; MODULE-DAG: !Analysis
; MODULE-NEXT: Pass: size-info
; MODULE-NEXT: Name: IRSizeChange
; MODULE-NEXT: Function:
; MODULE-NEXT: Args:
; MODULE-NEXT: - Pass: Dead Global Elimination
; MODULE-NEXT: - String: ': IR instruction count changed from '
; MODULE-NEXT: - IRInstrsBefore: '[[ORIG]]'
; MODULE-NEXT: - String: ' to '
; MODULE-NEXT: - IRInstrsAfter: '[[FINAL]]'
; MODULE-NEXT: - String: '; Delta: '
; MODULE-NEXT: - DeltaInstrCount: '[[DELTA]]'
; MODULE-DAG: --- !Analysis
; MODULE-NEXT: Pass: size-info
; MODULE-NEXT: Name: FunctionIRSizeChange
; MODULE-NEXT: Function:
; MODULE-NEXT: Args:
; MODULE-NEXT: - Pass: Dead Global Elimination
; MODULE-NEXT: - String: ': Function: '
; MODULE-NEXT: - Function: pluto
; MODULE-NEXT: - String: ': IR instruction count changed from '
; MODULE-NEXT: - IRInstrsBefore: '[[ORIGFN]]'
; MODULE-NEXT: - String: ' to '
; MODULE-NEXT: - IRInstrsAfter: '[[FINALFN]]'
; MODULE-NEXT: - String: '; Delta: '
; MODULE-NEXT: - DeltaInstrCount: '[[DELTAFN]]'
; RUN: opt < %s -dce -pass-remarks-analysis='size-info' \
; RUN: -pass-remarks-output=%t.yaml -S -o /dev/null 2> %t; \
; RUN: cat %t %t.yaml | FileCheck %s -check-prefix=BB
; BB: remark: <unknown>:0:0: Dead Code Elimination:
; BB-SAME: IR instruction count changed from
; BB-SAME: [[ORIG:[1-9][0-9]*]] to [[FINAL:[1-9][0-9]*]];
; BB-SAME: Delta: [[DELTA:-?[1-9][0-9]*]]
; BB-NEXT: remark: <unknown>:0:0: Dead Code Elimination: Function: bar:
; BB-SAME: IR instruction count changed from [[ORIGFN:[1-9][0-9]*]] to
; BB-SAME: [[FINALFN:[0-9][0-9]*]]; Delta: [[DELTAFN:-?[1-9][0-9]*]]
; BB-NEXT: ---
; BB-DAG: !Analysis
; BB-NEXT: Pass: size-info
; BB-NEXT: Name: IRSizeChange
; BB-NEXT: Function:
; BB-NEXT: Args:
; BB-NEXT: - Pass: Dead Code Elimination
; BB-NEXT: - String: ': IR instruction count changed from '
; BB-NEXT: - IRInstrsBefore: '[[ORIG]]'
; BB-NEXT: - String: ' to '
; BB-NEXT: - IRInstrsAfter: '[[FINAL]]'
; BB-NEXT: - String: '; Delta: '
; BB-NEXT: - DeltaInstrCount: '[[DELTA]]'
; BB-DAG: --- !Analysis
; BB-NEXT: Pass: size-info
; BB-NEXT: Name: FunctionIRSizeChange
; BB-NEXT: Function:
; BB-NEXT: Args:
; BB-NEXT: - Pass: Dead Code Elimination
; BB-NEXT: - String: ': Function: '
; BB-NEXT: - Function: bar
; BB-NEXT: - String: ': IR instruction count changed from '
; BB-NEXT: - IRInstrsBefore: '[[ORIGFN]]'
; BB-NEXT: - String: ' to '
; BB-NEXT: - IRInstrsAfter: '[[FINALFN]]'
; BB-NEXT: - String: '; Delta: '
; BB-NEXT: - DeltaInstrCount: '[[DELTAFN]]'
; RUN: opt < %s -loop-unroll -pass-remarks-analysis='size-info' \
; RUN: -pass-remarks-output=%t.yaml -S -o /dev/null 2> %t; \
; RUN: cat %t %t.yaml | FileCheck %s -check-prefix=LOOP
; LOOP: remark: <unknown>:0:0: Unroll loops:
; LOOP-SAME: IR instruction count changed from
; LOOP-SAME: [[ORIG:[1-9][0-9]*]] to [[FINAL:[1-9][0-9]*]];
; LOOP-SAME: Delta: [[DELTA:-?[1-9][0-9]*]]
; LOOP-NEXT: remark: <unknown>:0:0: Unroll loops: Function: bar:
; LOOP-SAME: IR instruction count changed from [[ORIGFN:[1-9][0-9]*]]
; LOOP-SAME: to [[FINALFN:[0-9][0-9]*]];
; Since bar is the only function containing a loop, its delta must be identical
; to the whole module remark's delta.
; LOOP-SAME: Delta: [[DELTA]]
; LOOP-NEXT: ---
; LOOP-DAG: !Analysis
; LOOP-NEXT: Pass: size-info
; LOOP-NEXT: Name: IRSizeChange
; LOOP-NEXT: Function:
; LOOP-NEXT: Args:
; LOOP-DAG: - Pass: Unroll loops
; LOOP-NEXT: - String: ': IR instruction count changed from '
; LOOP-NEXT: - IRInstrsBefore: '[[ORIG]]'
; LOOP-NEXT: - String: ' to '
; LOOP-NEXT: - IRInstrsAfter: '[[FINAL]]'
; LOOP-NEXT: - String: '; Delta: '
; LOOP-NEXT: - DeltaInstrCount: '[[DELTA]]'
; LOOP-DAG: --- !Analysis
; LOOP-NEXT: Pass: size-info
; LOOP-NEXT: Name: FunctionIRSizeChange
; LOOP-NEXT: Function:
; LOOP-NEXT: Args:
; LOOP-NEXT: - Pass: Unroll loops
; LOOP-NEXT: - String: ': Function: '
; LOOP-NEXT: - Function: bar
; LOOP-NEXT: - String: ': IR instruction count changed from '
; LOOP-NEXT: - IRInstrsBefore: '[[ORIGFN]]'
; LOOP-NEXT: - String: ' to '
; LOOP-NEXT: - IRInstrsAfter: '[[FINALFN]]'
; LOOP-NEXT: - String: '; Delta: '
; LOOP-NEXT: - DeltaInstrCount: '[[DELTA]]'
declare i1 ()* @boop()
define internal i1 @pluto() {
%F = call i1 ()* () @boop( )
%c = icmp eq i1 ()* %F, @pluto
ret i1 %c
}
define i32 @foo(i32 %x) {
entry:
%x.addr = alloca i32, align 4
store i32 %x, i32* %x.addr, align 4
%0 = load i32, i32* %x.addr, align 4
ret i32 %0
}
define i32 @bar(i32 %x) {
entry:
%x.addr = alloca i32, align 4
store i32 %x, i32* %x.addr, align 4
%0 = load i32, i32* %x.addr, align 4
%call = call i32 @foo(i32 %0)
br label %for.body
for.body:
%s.06 = phi i32 [ 0, %entry ], [ %add, %for.body ]
%i.05 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
%add = add nsw i32 %i.05, 4
%inc = add nsw i32 %i.05, 1
%exitcond = icmp eq i32 %inc, 16
br i1 %exitcond, label %for.end, label %for.body
for.end:
ret i32 %add
}