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https://github.com/c64scene-ar/llvm-6502.git
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26d628d6ce
Summary: Currently fast-isel-abort will only abort for regular instructions, and just warn for function calls, terminators, function arguments. There is already fast-isel-abort-args but nothing for calls and terminators. This change turns the fast-isel-abort options into an integer option, so that multiple levels of strictness can be defined. This will help no being surprised when the "abort" option indeed does not abort, and enables the possibility to write test that verifies that no intrinsics are forgotten by fast-isel. Reviewers: resistor, echristo Subscribers: jfb, llvm-commits Differential Revision: http://reviews.llvm.org/D7941 From: Mehdi Amini <mehdi.amini@apple.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230775 91177308-0d34-0410-b5e6-96231b3b80d8
29 lines
819 B
LLVM
29 lines
819 B
LLVM
; RUN: llc -fast-isel -fast-isel-abort=1 -asm-verbose=false -mtriple=x86_64-unknown-unknown -mattr=+f16c < %s | FileCheck %s
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; Verify that fast-isel correctly expands float-half conversions.
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define i16 @test_fp32_to_fp16(float %a) {
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; CHECK-LABEL: test_fp32_to_fp16:
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; CHECK: vcvtps2ph $0, %xmm0, %xmm0
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; CHECK-NEXT: vmovd %xmm0, %eax
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; CHECK-NEXT: retq
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entry:
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%0 = call i16 @llvm.convert.to.fp16.f32(float %a)
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ret i16 %0
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}
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define float @test_fp16_to_fp32(i32 %a) {
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; CHECK-LABEL: test_fp16_to_fp32:
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; CHECK: movswl %di, %eax
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; CHECK-NEXT: vmovd %eax, %xmm0
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; CHECK-NEXT: vcvtph2ps %xmm0, %xmm0
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; CHECK-NEXT: retq
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entry:
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%0 = trunc i32 %a to i16
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%1 = call float @llvm.convert.from.fp16.f32(i16 %0)
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ret float %1
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}
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declare i16 @llvm.convert.to.fp16.f32(float)
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declare float @llvm.convert.from.fp16.f32(i16)
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