fast-isel-select.ll
2.35 KB
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; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
; RUN: llc -fast-isel-sink-local-values < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv8-apple-ios | FileCheck %s --check-prefix=THUMB
define i32 @t1(i1 %c) nounwind readnone {
entry:
; ARM: t1
; ARM: tst r0, #1
; ARM: movw r0, #10
; ARM: moveq r0, #20
; THUMB: t1
; THUMB: tst.w r0, #1
; THUMB: movw r0, #10
; THUMB: it eq
; THUMB: moveq r0, #20
%0 = select i1 %c, i32 10, i32 20
ret i32 %0
}
define i32 @t2(i1 %c, i32 %a) nounwind readnone {
entry:
; ARM: t2
; ARM: tst {{r[0-9]+}}, #1
; ARM: moveq {{r[0-9]+}}, #20
; THUMB-LABEL: t2
; THUMB: tst.w {{r[0-9]+}}, #1
; THUMB: it eq
; THUMB: moveq {{r[0-9]+}}, #20
%0 = select i1 %c, i32 %a, i32 20
ret i32 %0
}
define i32 @t3(i1 %c, i32 %a, i32 %b) nounwind readnone {
entry:
; ARM: t3
; ARM: tst r0, #1
; ARM: movne r2, r1
; ARM: add r0, r2, r1
; THUMB: t3
; THUMB: tst.w r0, #1
; THUMB: it ne
; THUMB: movne r2, r1
; THUMB: adds r0, r2, r1
%0 = select i1 %c, i32 %a, i32 %b
%1 = add i32 %0, %a
ret i32 %1
}
define i32 @t4(i1 %c) nounwind readnone {
entry:
; ARM: t4
; ARM: tst r0, #1
; ARM: mvn r0, #9
; ARM: mvneq r0, #0
; THUMB-LABEL: t4
; THUMB: tst.w r0, #1
; THUMB: mvn r0, #9
; THUMB: it eq
; THUMB: mvneq r0, #0
%0 = select i1 %c, i32 -10, i32 -1
ret i32 %0
}
define i32 @t5(i1 %c, i32 %a) nounwind readnone {
entry:
; ARM: t5
; ARM: tst {{r[0-9]+}}, #1
; ARM: mvneq {{r[0-9]+}}, #1
; THUMB: t5
; THUMB: tst.w {{r[0-9]+}}, #1
; THUMB: it eq
; THUMB: mvneq {{r[0-9]+}}, #1
%0 = select i1 %c, i32 %a, i32 -2
ret i32 %0
}
; Check one large negative immediates.
define i32 @t6(i1 %c, i32 %a) nounwind readnone {
entry:
; ARM: t6
; ARM: tst {{r[0-9]+}}, #1
; ARM: mvneq {{r[0-9]+}}, #978944
; THUMB: t6
; THUMB: tst.w {{r[0-9]+}}, #1
; THUMB: it eq
; THUMB: mvneq {{r[0-9]+}}, #978944
%0 = select i1 %c, i32 %a, i32 -978945
ret i32 %0
}