2019-08-15 01:15:20 +08:00
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -instcombine -S < %s | FileCheck %s
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declare i32 @memcmp(i8 addrspace(1)* nocapture, i8* nocapture, i64)
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[SimplifyLibCalls] Mark known arguments with nonnull
Reviewers: efriedma, jdoerfert
Reviewed By: jdoerfert
Subscribers: ychen, rsmith, joerg, aaron.ballman, lebedev.ri, uenoku, jdoerfert, hfinkel, javed.absar, spatel, dmgreen, llvm-commits
Differential Revision: https://reviews.llvm.org/D53342
llvm-svn: 372091
2019-09-17 17:32:52 +08:00
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define i32 @memcmp_const_size_update_deref(i8 addrspace(1)* nocapture readonly %d, i8* nocapture readonly %s) {
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; CHECK-LABEL: @memcmp_const_size_update_deref(
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; CHECK-NEXT: [[CALL:%.*]] = tail call i32 @memcmp(i8 addrspace(1)* dereferenceable(16) dereferenceable_or_null(40) [[D:%.*]], i8* nonnull dereferenceable(16) [[S:%.*]], i64 16)
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2019-08-15 01:15:20 +08:00
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; CHECK-NEXT: ret i32 [[CALL]]
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;
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%call = tail call i32 @memcmp(i8 addrspace(1)* dereferenceable_or_null(40) %d, i8* %s, i64 16)
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ret i32 %call
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}
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[SimplifyLibCalls] Mark known arguments with nonnull
Reviewers: efriedma, jdoerfert
Reviewed By: jdoerfert
Subscribers: ychen, rsmith, joerg, aaron.ballman, lebedev.ri, uenoku, jdoerfert, hfinkel, javed.absar, spatel, dmgreen, llvm-commits
Differential Revision: https://reviews.llvm.org/D53342
llvm-svn: 372091
2019-09-17 17:32:52 +08:00
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define i32 @memcmp_nonconst_size_nonnnull(i8 addrspace(1)* nocapture readonly %d, i8* nocapture readonly %s, i64 %n) {
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; CHECK-LABEL: @memcmp_nonconst_size_nonnnull(
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; CHECK-NEXT: [[CALL:%.*]] = tail call i32 @memcmp(i8 addrspace(1)* nonnull dereferenceable_or_null(40) [[D:%.*]], i8* nonnull [[S:%.*]], i64 [[N:%.*]])
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; CHECK-NEXT: ret i32 [[CALL]]
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;
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%call = tail call i32 @memcmp(i8 addrspace(1)* nonnull dereferenceable_or_null(40) %d, i8* nonnull %s, i64 %n)
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ret i32 %call
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}
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