116 lines
3.0 KiB
LLVM
116 lines
3.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=thumbv7-linux-gnueabi -mcpu=cortex-m0 -verify-machineinstrs | FileCheck --check-prefix CHECK-T1 %s
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; RUN: llc < %s -mtriple=thumbv7-linux-gnueabi -mcpu=cortex-m3 -verify-machineinstrs | FileCheck --check-prefix CHECK-T2 %s
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define i32 @i(i32 %a) {
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; CHECK-T1-LABEL: i:
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; CHECK-T1: @ %bb.0: @ %entry
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; CHECK-T1-NEXT: movs r1, #255
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; CHECK-T1-NEXT: adds r1, #20
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; CHECK-T1-NEXT: bics r0, r1
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; CHECK-T1-NEXT: bx lr
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;
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; CHECK-T2-LABEL: i:
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; CHECK-T2: @ %bb.0: @ %entry
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; CHECK-T2-NEXT: movw r1, #275
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; CHECK-T2-NEXT: bics r0, r1
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; CHECK-T2-NEXT: bx lr
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entry:
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%and = and i32 %a, -276
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ret i32 %and
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}
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define i32 @j(i32 %a) {
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; CHECK-T1-LABEL: j:
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; CHECK-T1: @ %bb.0: @ %entry
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; CHECK-T1-NEXT: movs r1, #128
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; CHECK-T1-NEXT: bics r0, r1
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; CHECK-T1-NEXT: bx lr
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;
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; CHECK-T2-LABEL: j:
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; CHECK-T2: @ %bb.0: @ %entry
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; CHECK-T2-NEXT: bic r0, r0, #128
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; CHECK-T2-NEXT: bx lr
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entry:
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%and = and i32 %a, -129
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ret i32 %and
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}
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define void @truncated(i16 %a, i16* %p) {
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; CHECK-T1-LABEL: truncated:
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; CHECK-T1: @ %bb.0:
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; CHECK-T1-NEXT: movs r2, #128
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; CHECK-T1-NEXT: bics r0, r2
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; CHECK-T1-NEXT: strh r0, [r1]
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; CHECK-T1-NEXT: bx lr
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;
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; CHECK-T2-LABEL: truncated:
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; CHECK-T2: @ %bb.0:
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; CHECK-T2-NEXT: bic r0, r0, #128
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; CHECK-T2-NEXT: strh r0, [r1]
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; CHECK-T2-NEXT: bx lr
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%and = and i16 %a, -129
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store i16 %and, i16* %p
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ret void
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}
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define void @truncated_neg2(i16 %a, i16* %p) {
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; CHECK-T1-LABEL: truncated_neg2:
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; CHECK-T1: @ %bb.0:
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; CHECK-T1-NEXT: movs r2, #1
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; CHECK-T1-NEXT: bics r0, r2
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; CHECK-T1-NEXT: strh r0, [r1]
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; CHECK-T1-NEXT: bx lr
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;
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; CHECK-T2-LABEL: truncated_neg2:
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; CHECK-T2: @ %bb.0:
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; CHECK-T2-NEXT: bic r0, r0, #1
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; CHECK-T2-NEXT: strh r0, [r1]
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; CHECK-T2-NEXT: bx lr
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%and = and i16 %a, -2
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store i16 %and, i16* %p
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ret void
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}
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define void @truncated_neg256(i16 %a, i16* %p) {
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; CHECK-T1-LABEL: truncated_neg256:
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; CHECK-T1: @ %bb.0:
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; CHECK-T1-NEXT: movs r2, #255
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; CHECK-T1-NEXT: bics r0, r2
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; CHECK-T1-NEXT: strh r0, [r1]
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; CHECK-T1-NEXT: bx lr
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;
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; CHECK-T2-LABEL: truncated_neg256:
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; CHECK-T2: @ %bb.0:
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; CHECK-T2-NEXT: bic r0, r0, #255
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; CHECK-T2-NEXT: strh r0, [r1]
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; CHECK-T2-NEXT: bx lr
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%and = and i16 %a, -256
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store i16 %and, i16* %p
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ret void
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}
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; FIXME: Thumb2 supports "bic r0, r0, #510"
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define void @truncated_neg511(i16 %a, i16* %p) {
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; CHECK-T1-LABEL: truncated_neg511:
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; CHECK-T1: @ %bb.0:
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; CHECK-T1-NEXT: ldr r2, .LCPI5_0
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; CHECK-T1-NEXT: ands r2, r0
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; CHECK-T1-NEXT: strh r2, [r1]
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; CHECK-T1-NEXT: bx lr
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; CHECK-T1-NEXT: .p2align 2
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; CHECK-T1-NEXT: @ %bb.1:
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; CHECK-T1-NEXT: .LCPI5_0:
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; CHECK-T1-NEXT: .long 65025 @ 0xfe01
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;
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; CHECK-T2-LABEL: truncated_neg511:
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; CHECK-T2: @ %bb.0:
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; CHECK-T2-NEXT: movw r2, #65025
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; CHECK-T2-NEXT: ands r0, r2
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; CHECK-T2-NEXT: strh r0, [r1]
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; CHECK-T2-NEXT: bx lr
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%and = and i16 %a, -511
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store i16 %and, i16* %p
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ret void
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}
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