Files
llvm-6502/test/CodeGen/AArch64/remat-float0.ll
Chad Rosier c1813d8fe1 [AArch64] Enable rematerialization of float 0 values.
Patch by Geoff Berry<gberry@codeaurora.org>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232967 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-23 17:19:34 +00:00

19 lines
646 B
LLVM

; RUN: llc < %s -mtriple=aarch64-none-linux-gnu -verify-machineinstrs
; Check that float 0 gets rematerialized with an fmov of zero reg instead
; of spilled/filled.
declare void @bar(float)
define void @foo() {
; CHECK-LABEL: foo:
; CHECK: fmov s0, wzr
; CHECK: bl bar
; CHECK: fmov s0, wzr
; CHECK: bl bar
call void @bar(float 0.000000e+00)
call void asm sideeffect "", "~{s0},~{s1},~{s2},~{s3},~{s4},~{s5},~{s6},~{s7},~{s8},~{s9},~{s10},~{s11},~{s12},~{s13},~{s14},~{s15},~{s16},~{s17},~{s18},~{s19},~{s20},~{s21},~{s22},~{s23},~{s24},~{s25},~{s26},~{s27},~{s28},~{s29},~{s30},~{s31}"()
call void @bar(float 0.000000e+00)
ret void
}