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llvm-mirror/test/CodeGen/ARM/carry.ll
Saleem Abdulrasool 53e8c5a4af ARM: fixup more tests to specify the target more explicitly
This changes the tests that were targeting ARM EABI to explicitly specify the
environment rather than relying on the default.  This breaks with the new
Windows on ARM support when running the tests on Windows where the default
environment is no longer EABI.

Take the opportunity to avoid a pointless redirect (helps when trying to debug
with providing a command line invocation which can be copy and pasted) and
removing a few greps in favour of FileCheck.

llvm-svn: 205541
2014-04-03 16:01:44 +00:00

61 lines
1.1 KiB
LLVM

; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s
define i64 @f1(i64 %a, i64 %b) {
; CHECK-LABEL: f1:
; CHECK: subs r
; CHECK: sbc r
entry:
%tmp = sub i64 %a, %b
ret i64 %tmp
}
define i64 @f2(i64 %a, i64 %b) {
; CHECK-LABEL: f2:
; CHECK: adc r
; CHECK: subs r
; CHECK: sbc r
entry:
%tmp1 = shl i64 %a, 1
%tmp2 = sub i64 %tmp1, %b
ret i64 %tmp2
}
; add with live carry
define i64 @f3(i32 %al, i32 %bl) {
; CHECK-LABEL: f3:
; CHECK: adds r
; CHECK: adc r
entry:
; unsigned wide add
%aw = zext i32 %al to i64
%bw = zext i32 %bl to i64
%cw = add i64 %aw, %bw
; ch == carry bit
%ch = lshr i64 %cw, 32
%dw = add i64 %ch, %bw
ret i64 %dw
}
; rdar://10073745
define i64 @f4(i64 %x) nounwind readnone {
entry:
; CHECK-LABEL: f4:
; CHECK: rsbs r
; CHECK: rsc r
%0 = sub nsw i64 0, %x
ret i64 %0
}
; rdar://12559385
define i64 @f5(i32 %vi) {
entry:
; CHECK-LABEL: f5:
; CHECK: movw [[REG:r[0-9]+]], #36102
; CHECK: sbc r{{[0-9]+}}, r{{[0-9]+}}, [[REG]]
%v0 = zext i32 %vi to i64
%v1 = xor i64 %v0, -155057456198619
%v4 = add i64 %v1, 155057456198619
%v5 = add i64 %v4, %v1
ret i64 %v5
}