37f0c8df47
This essentially reverts the x86-64 side effect of r327198. For x86-32, @PLT (R_386_PLT32) is not suitable in -fno-pic mode so the code forces MO_NO_FLAG (like a forced dso_local) (https://bugs.llvm.org//show_bug.cgi?id=36674#c6). For x86-64, both `call/jmp foo` and `call/jmp foo@PLT` emit R_X86_64_PLT32 (https://sourceware.org/bugzilla/show_bug.cgi?id=22791) so there is no difference using @PLT. Using @PLT is actually favorable because this drops a difference with -fpie/-fpic code and makes it possible to avoid a canonical PLT entry when taking the address of an undefined function symbol.
48 lines
1.3 KiB
LLVM
48 lines
1.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-unknown | FileCheck %s
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; RUN: llc < %s -mtriple=i686-unknown -mattr=sse2 | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-unknown | FileCheck %s --check-prefix=X64
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define i32 @testmsws(float %x) {
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; CHECK-LABEL: testmsws:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: jmp lroundf # TAILCALL
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;
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; X64-LABEL: testmsws:
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; X64: # %bb.0: # %entry
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; X64-NEXT: jmp lroundf@PLT # TAILCALL
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entry:
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%0 = tail call i32 @llvm.lround.i32.f32(float %x)
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ret i32 %0
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}
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define i32 @testmswd(double %x) {
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; CHECK-LABEL: testmswd:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: jmp lround # TAILCALL
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;
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; X64-LABEL: testmswd:
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; X64: # %bb.0: # %entry
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; X64-NEXT: jmp lround@PLT # TAILCALL
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entry:
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%0 = tail call i32 @llvm.lround.i32.f64(double %x)
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ret i32 %0
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}
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define i32 @testmsll(x86_fp80 %x) {
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; CHECK-LABEL: testmsll:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: jmp lroundl # TAILCALL
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;
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; X64-LABEL: testmsll:
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; X64: # %bb.0: # %entry
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; X64-NEXT: jmp lroundl@PLT # TAILCALL
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entry:
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%0 = tail call i32 @llvm.lround.i32.f80(x86_fp80 %x)
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ret i32 %0
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}
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declare i32 @llvm.lround.i32.f32(float) nounwind readnone
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declare i32 @llvm.lround.i32.f64(double) nounwind readnone
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declare i32 @llvm.lround.i32.f80(x86_fp80) nounwind readnone
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