3f540c05df
If the function is not assumed `noreturn` we should not wait for an
update to mark the call site as "may-return".
This has two kinds of consequences:
- We have less iterations in many tests.
- We have less deductions based on "known information" (since we ask
earlier, point 1, and therefore assumed information is not "known"
yet).
The latter is an artifact that we might want to tackle properly at some
point but which is not easily fixable right now.
109 lines
5.2 KiB
LLVM
109 lines
5.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
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; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=2 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
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; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=2 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
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; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
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; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define i64 @fn2() {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@fn2
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; IS__TUNIT____-SAME: () [[ATTR0:#.*]] {
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; IS__TUNIT____-NEXT: entry:
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; IS__TUNIT____-NEXT: [[CALL2:%.*]] = call i64 @fn1(i64 undef) [[ATTR0]], [[RNG0:!range !.*]]
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; IS__TUNIT____-NEXT: ret i64 [[CALL2]]
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;
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; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@fn2
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; IS__CGSCC_OPM-SAME: () [[ATTR0:#.*]] {
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; IS__CGSCC_OPM-NEXT: entry:
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; IS__CGSCC_OPM-NEXT: [[CALL2:%.*]] = call i64 @fn1(i64 undef) [[ATTR1:#.*]]
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; IS__CGSCC_OPM-NEXT: ret i64 [[CALL2]]
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;
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; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@fn2
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; IS__CGSCC_NPM-SAME: () [[ATTR0:#.*]] {
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; IS__CGSCC_NPM-NEXT: entry:
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; IS__CGSCC_NPM-NEXT: [[CALL2:%.*]] = call i64 @fn1(i64 undef) [[ATTR1:#.*]], [[RNG0:!range !.*]]
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; IS__CGSCC_NPM-NEXT: ret i64 [[CALL2]]
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;
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entry:
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%conv = sext i32 undef to i64
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%div = sdiv i64 8, %conv
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%call2 = call i64 @fn1(i64 %div)
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ret i64 %call2
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}
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define i64 @fn2b(i32 %arg) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@fn2b
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; IS__TUNIT____-SAME: (i32 [[ARG:%.*]]) [[ATTR0]] {
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; IS__TUNIT____-NEXT: entry:
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; IS__TUNIT____-NEXT: [[CONV:%.*]] = sext i32 [[ARG]] to i64
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; IS__TUNIT____-NEXT: [[DIV:%.*]] = sdiv i64 8, [[CONV]]
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; IS__TUNIT____-NEXT: [[CALL2:%.*]] = call i64 @fn1(i64 [[DIV]]) [[ATTR0]], [[RNG0]]
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; IS__TUNIT____-NEXT: ret i64 [[CALL2]]
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@fn2b
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; IS__CGSCC____-SAME: (i32 [[ARG:%.*]]) [[ATTR0:#.*]] {
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; IS__CGSCC____-NEXT: entry:
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; IS__CGSCC____-NEXT: [[CONV:%.*]] = sext i32 [[ARG]] to i64
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; IS__CGSCC____-NEXT: [[DIV:%.*]] = sdiv i64 8, [[CONV]]
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; IS__CGSCC____-NEXT: [[CALL2:%.*]] = call i64 @fn1(i64 [[DIV]]) [[ATTR1:#.*]], [[RNG0:!range !.*]]
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; IS__CGSCC____-NEXT: ret i64 [[CALL2]]
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;
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entry:
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%conv = sext i32 %arg to i64
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%div = sdiv i64 8, %conv
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%call2 = call i64 @fn1(i64 %div)
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ret i64 %call2
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}
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define i64 @fn2c() {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@fn2c
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; IS__TUNIT____-SAME: () [[ATTR0]] {
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; IS__TUNIT____-NEXT: entry:
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; IS__TUNIT____-NEXT: [[CALL2:%.*]] = call i64 @fn1(i64 noundef 42) [[ATTR0]], [[RNG0]]
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; IS__TUNIT____-NEXT: ret i64 [[CALL2]]
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@fn2c
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; IS__CGSCC____-SAME: () [[ATTR0]] {
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; IS__CGSCC____-NEXT: entry:
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; IS__CGSCC____-NEXT: [[CALL2:%.*]] = call i64 @fn1(i64 noundef 42) [[ATTR1]]
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; IS__CGSCC____-NEXT: ret i64 [[CALL2]]
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;
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entry:
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%conv = sext i32 undef to i64
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%add = add i64 42, %conv
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%call2 = call i64 @fn1(i64 %add)
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ret i64 %call2
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}
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define internal i64 @fn1(i64 %p1) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@fn1
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; IS__TUNIT____-SAME: (i64 returned [[P1:%.*]]) [[ATTR0]] {
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; IS__TUNIT____-NEXT: entry:
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; IS__TUNIT____-NEXT: [[TOBOOL:%.*]] = icmp ne i64 [[P1]], 0
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; IS__TUNIT____-NEXT: [[COND:%.*]] = select i1 [[TOBOOL]], i64 [[P1]], i64 [[P1]]
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; IS__TUNIT____-NEXT: ret i64 [[COND]]
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@fn1
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; IS__CGSCC____-SAME: (i64 returned [[P1:%.*]]) [[ATTR0]] {
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; IS__CGSCC____-NEXT: entry:
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; IS__CGSCC____-NEXT: [[TOBOOL:%.*]] = icmp ne i64 [[P1]], 0
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; IS__CGSCC____-NEXT: [[COND:%.*]] = select i1 [[TOBOOL]], i64 [[P1]], i64 [[P1]]
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; IS__CGSCC____-NEXT: ret i64 [[COND]]
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;
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entry:
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%tobool = icmp ne i64 %p1, 0
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%cond = select i1 %tobool, i64 %p1, i64 %p1
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ret i64 %cond
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}
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