78 lines
2.5 KiB
LLVM
78 lines
2.5 KiB
LLVM
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; RUN: llc -mtriple=thumbv6m-eabi -verify-machineinstrs %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-T1
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; RUN: llc -mtriple=thumbv5e-linux-gnueabi -verify-machineinstrs %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-T1
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; RUN: llc -mtriple=thumbv7m -verify-machineinstrs %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-T2
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; RUN: llc -mtriple=thumbv7a -verify-machineinstrs %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-T2
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%struct1 = type { ptr, ptr, i32 }
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%struct2 = type { i32, i32, ptr }
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@x1 = external global %struct1, align 4
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@x2 = external global %struct1, align 4
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declare void @fn1(i32, i32)
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declare void @fn2(ptr)
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; CHECK-LABEL: test1:
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; CHECK-T1: str r0, [r1]
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; CHECK-T1-NEXT: str r1, [r1, #4]
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; CHECK-T2: strd r0, r1, [r1]
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; CHECK-NOT: stm
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define void @test1(i32 %unused, ptr %x) {
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%second = getelementptr inbounds %struct1, ptr %x, i32 0, i32 1
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store ptr @x1, ptr %x
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store ptr %x, ptr %second
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ret void
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}
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; CHECK-LABEL: test2:
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; CHECK-T1: str r0, [r2]
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; CHECK-T1-NEXT: str r1, [r2, #4]
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; CHECK-T1-NEXT: str r2, [r2, #8]
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; CHECK-T2: stm.w r2, {r0, r1, r2}
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; CHECK-NOT: stm r2!, {r0, r1, r2}
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define i32 @test2(i32 %a, i32 %b, ptr %p) {
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entry:
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%p2 = getelementptr inbounds %struct2, ptr %p, i32 0, i32 1
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%p3 = getelementptr inbounds %struct2, ptr %p, i32 0, i32 2
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store i32 %a, ptr %p, align 4
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store i32 %b, ptr %p2, align 4
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store ptr %p, ptr %p3, align 4
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call void @fn1(i32 %a, i32 %b)
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ret i32 0
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}
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; CHECK-LABEL: test3:
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; CHECK-T1: str r0, [r2]
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; CHECK-T1-NEXT: str r1, [r2, #4]
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; CHECK-T1-NEXT: str r2, [r2, #8]
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; CHECK-T2: stm.w r2, {r0, r1, r2}
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; CHECK-NOT: stm r2!, {r0, r1, r2}
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define i32 @test3(i32 %a, i32 %b, ptr %p) {
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entry:
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%p2 = getelementptr inbounds %struct2, ptr %p, i32 0, i32 1
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%p3 = getelementptr inbounds %struct2, ptr %p, i32 0, i32 2
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store i32 %a, ptr %p, align 4
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store i32 %b, ptr %p2, align 4
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store ptr %p, ptr %p3, align 4
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%p4 = getelementptr inbounds %struct2, ptr %p, i32 1
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call void @fn2(ptr %p4)
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ret i32 0
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}
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; FIXME: We should be using stm in both thumb1 and thumb2
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; CHECK-LABEL: test4:
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; CHECK-T1: str r0, [r0]
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; CHECK-T1-NEXT: str r1, [r0, #4]
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; CHECK-T1-NEXT: str r2, [r0, #8]
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; CHECK-T2: stm r0!, {r0, r1, r2}
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define i32 @test4(ptr %p, ptr %q, i32 %a) {
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entry:
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%p2 = getelementptr inbounds %struct1, ptr %p, i32 0, i32 1
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%p3 = getelementptr inbounds %struct1, ptr %p, i32 0, i32 2
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store ptr %p, ptr %p, align 4
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store ptr %q, ptr %p2, align 4
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store i32 %a, ptr %p3, align 4
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call void @fn1(i32 %a, i32 %a)
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ret i32 0
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}
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