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llvm-project/llvm/test/CodeGen/X86/floor-soft-float.ll

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X86: Do not use llc -march in tests. `llc -march` is problematic because it only switches the target architecture, but leaves the operating system unchanged. This occasionally leads to indeterministic tests because the OS from LLVM_DEFAULT_TARGET_TRIPLE is used. However we can simply always use `llc -mtriple` instead. This changes all the tests to do this to avoid people using -march when they copy and paste parts of tests. See also the discussion in https://reviews.llvm.org/D35287 llvm-svn: 309774
2017-08-02 08:28:10 +08:00
; RUN: llc < %s -mattr=+sse4.1,-avx | FileCheck %s --check-prefix=CHECK-HARD-FLOAT
; RUN: llc < %s -mattr=+sse4.1,-avx,+soft-float | FileCheck %s --check-prefix=CHECK-SOFT-FLOAT
Add a target legalize hook for SplitVectorOperand (again) CustomLowerNode was not being called during SplitVectorOperand, meaning custom legalization could not be used by targets. This also adds a test case for NVPTX that depends on this custom legalization. Differential Revision: http://llvm-reviews.chandlerc.com/D1195 Attempt to fix the buildbots by making the X86 test I just added platform independent llvm-svn: 187202
2013-07-26 21:28:29 +08:00
target triple = "x86_64-unknown-linux-gnu"
declare float @llvm.floor.f32(float)
; CHECK-SOFT-FLOAT: callq floorf
Don't raise inexact when lowering ceil, floor, round, trunc. The C standard has historically not specified whether or not these functions should raise the inexact flag. Traditionally on Darwin, these functions *did* raise inexact, and the llvm lowerings followed that conventions. n1778 (C bindings for IEEE-754 (2008)) clarifies that these functions should not set inexact. This patch brings the lowerings for arm64 and x86 in line with the newly specified behavior. This also lets us fold some logic into TD patterns, which is nice. Differential Revision: http://reviews.llvm.org/D12969 llvm-svn: 248266
2015-09-22 19:43:17 +08:00
; CHECK-HARD-FLOAT: roundss $9, %xmm0, %xmm0
Add a target legalize hook for SplitVectorOperand (again) CustomLowerNode was not being called during SplitVectorOperand, meaning custom legalization could not be used by targets. This also adds a test case for NVPTX that depends on this custom legalization. Differential Revision: http://llvm-reviews.chandlerc.com/D1195 Attempt to fix the buildbots by making the X86 test I just added platform independent llvm-svn: 187202
2013-07-26 21:28:29 +08:00
define float @myfloor(float %a) {
%val = tail call float @llvm.floor.f32(float %a)
ret float %val
}