-; RUN: llc < %s -O0 -fast-isel-abort -mtriple=armv7-apple-darwin
-; RUN: llc < %s -O0 -fast-isel-abort -mtriple=thumbv7-apple-darwin
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
+; RUN: llc < %s -O0 -arm-strict-align -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
+; RUN: llc < %s -O0 -arm-strict-align -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN
; Very basic fast-isel functionality.
-
define i32 @add(i32 %a, i32 %b) nounwind {
entry:
%a.addr = alloca i32, align 4
ret i32 %add
}
+; Check truncate to bool
define void @test1(i32 %tmp) nounwind {
entry:
%tobool = trunc i32 %tmp to i1
if.end: ; preds = %if.then, %entry
ret void
-; CHECK: test1:
-; CHECK: tst r0, #1
+; ARM: test1:
+; ARM: tst r0, #1
+; THUMB: test1:
+; THUMB: tst.w r0, #1
+}
+
+; Check some simple operations with immediates
+define void @test2(i32 %tmp, i32* %ptr) nounwind {
+; THUMB: test2:
+; ARM: test2:
+
+b1:
+ %a = add i32 %tmp, 4096
+ store i32 %a, i32* %ptr
+ br label %b2
+
+; THUMB: add.w {{.*}} #4096
+; ARM: add {{.*}} #4096
+
+b2:
+ %b = add i32 %tmp, 4095
+ store i32 %b, i32* %ptr
+ br label %b3
+; THUMB: addw {{.*}} #4095
+; ARM: movw {{.*}} #4095
+; ARM: add
+
+b3:
+ %c = or i32 %tmp, 4
+ store i32 %c, i32* %ptr
+ ret void
+
+; THUMB: orr {{.*}} #4
+; ARM: orr {{.*}} #4
+}
+
+define void @test3(i32 %tmp, i32* %ptr1, i16* %ptr2, i8* %ptr3) nounwind {
+; THUMB: test3:
+; ARM: test3:
+
+bb1:
+ %a1 = trunc i32 %tmp to i16
+ %a2 = trunc i16 %a1 to i8
+ %a3 = trunc i8 %a2 to i1
+ %a4 = zext i1 %a3 to i8
+ store i8 %a4, i8* %ptr3
+ %a5 = zext i8 %a4 to i16
+ store i16 %a5, i16* %ptr2
+ %a6 = zext i16 %a5 to i32
+ store i32 %a6, i32* %ptr1
+ br label %bb2
+
+; THUMB: and
+; THUMB: strb
+; THUMB: uxtb
+; THUMB: strh
+; THUMB: uxth
+; ARM: and
+; ARM: strb
+; ARM: uxtb
+; ARM: strh
+; ARM: uxth
+
+bb2:
+ %b1 = trunc i32 %tmp to i16
+ %b2 = trunc i16 %b1 to i8
+ store i8 %b2, i8* %ptr3
+ %b3 = sext i8 %b2 to i16
+ store i16 %b3, i16* %ptr2
+ %b4 = sext i16 %b3 to i32
+ store i32 %b4, i32* %ptr1
+ br label %bb3
+
+; THUMB: strb
+; THUMB: sxtb
+; THUMB: strh
+; THUMB: sxth
+; ARM: strb
+; ARM: sxtb
+; ARM: strh
+; ARM: sxth
+
+bb3:
+ %c1 = load i8* %ptr3
+ %c2 = load i16* %ptr2
+ %c3 = load i32* %ptr1
+ %c4 = zext i8 %c1 to i32
+ %c5 = sext i16 %c2 to i32
+ %c6 = add i32 %c4, %c5
+ %c7 = sub i32 %c3, %c6
+ store i32 %c7, i32* %ptr1
+ ret void
+
+; THUMB: ldrb
+; THUMB: ldrh
+; THUMB: uxtb
+; THUMB: sxth
+; THUMB: add
+; THUMB: sub
+; ARM: ldrb
+; ARM: ldrh
+; ARM: uxtb
+; ARM: sxth
+; ARM: add
+; ARM: sub
+}
+
+; Check loads/stores with globals
+@test4g = external global i32
+
+define void @test4() {
+ %a = load i32* @test4g
+ %b = add i32 %a, 1
+ store i32 %b, i32* @test4g
+ ret void
+
+; THUMB: movw r0, :lower16:L_test4g$non_lazy_ptr
+; THUMB: movt r0, :upper16:L_test4g$non_lazy_ptr
+; THUMB: ldr r0, [r0]
+; THUMB: ldr r1, [r0]
+; THUMB: adds r1, #1
+; THUMB: str r1, [r0]
+
+; ARM: movw r0, :lower16:L_test4g$non_lazy_ptr
+; ARM: movt r0, :upper16:L_test4g$non_lazy_ptr
+; ARM: ldr r0, [r0]
+; ARM: ldr r1, [r0]
+; ARM: add r1, r1, #1
+; ARM: str r1, [r0]
+}
+
+; Check unaligned stores
+%struct.anon = type <{ float }>
+
+@a = common global %struct.anon* null, align 4
+
+define void @unaligned_store(float %x, float %y) nounwind {
+entry:
+; ARM: @unaligned_store
+; ARM: vmov r1, s0
+; ARM: str r1, [r0]
+
+; THUMB: @unaligned_store
+; THUMB: vmov r1, s0
+; THUMB: str r1, [r0]
+
+ %add = fadd float %x, %y
+ %0 = load %struct.anon** @a, align 4
+ %x1 = getelementptr inbounds %struct.anon* %0, i32 0, i32 0
+ store float %add, float* %x1, align 1
+ ret void
+}
+
+; Doublewords require only word-alignment.
+; rdar://10528060
+%struct.anon.0 = type { double }
+
+@foo_unpacked = common global %struct.anon.0 zeroinitializer, align 4
+
+define void @test5(double %a, double %b) nounwind {
+entry:
+; ARM: @test5
+; THUMB: @test5
+ %add = fadd double %a, %b
+ store double %add, double* getelementptr inbounds (%struct.anon.0* @foo_unpacked, i32 0, i32 0), align 4
+; ARM: vstr d16, [r0]
+; THUMB: vstr d16, [r0]
+ ret void
+}
+
+; Check unaligned loads of floats
+%class.TAlignTest = type <{ i16, float }>
+
+define zeroext i1 @test6(%class.TAlignTest* %this) nounwind align 2 {
+entry:
+; ARM: @test6
+; THUMB: @test6
+ %0 = alloca %class.TAlignTest*, align 4
+ store %class.TAlignTest* %this, %class.TAlignTest** %0, align 4
+ %1 = load %class.TAlignTest** %0
+ %2 = getelementptr inbounds %class.TAlignTest* %1, i32 0, i32 1
+ %3 = load float* %2, align 1
+ %4 = fcmp une float %3, 0.000000e+00
+; ARM: ldr r0, [r0, #2]
+; ARM: vmov s0, r0
+; ARM: vcmpe.f32 s0, #0
+; THUMB: ldr.w r0, [r0, #2]
+; THUMB: vmov s0, r0
+; THUMB: vcmpe.f32 s0, #0
+ ret i1 %4
+}
+
+; ARM: @urem_fold
+; THUMB: @urem_fold
+; ARM: and r0, r0, #31
+; THUMB: and r0, r0, #31
+define i32 @urem_fold(i32 %a) nounwind {
+ %rem = urem i32 %a, 32
+ ret i32 %rem
+}
+
+define i32 @test7() noreturn nounwind {
+entry:
+; ARM: @test7
+; THUMB: @test7
+; ARM: trap
+; THUMB: trap
+ tail call void @llvm.trap( )
+ unreachable
+}
+
+declare void @llvm.trap() nounwind
+
+define void @unaligned_i16_store(i16 %x, i16* %y) nounwind {
+entry:
+; ARM-STRICT-ALIGN: @unaligned_i16_store
+; ARM-STRICT-ALIGN: strb
+; ARM-STRICT-ALIGN: strb
+
+; THUMB-STRICT-ALIGN: @unaligned_i16_store
+; THUMB-STRICT-ALIGN: strb
+; THUMB-STRICT-ALIGN: strb
+
+ store i16 %x, i16* %y, align 1
+ ret void
+}
+
+define i16 @unaligned_i16_load(i16* %x) nounwind {
+entry:
+; ARM-STRICT-ALIGN: @unaligned_i16_load
+; ARM-STRICT-ALIGN: ldrb
+; ARM-STRICT-ALIGN: ldrb
+
+; THUMB-STRICT-ALIGN: @unaligned_i16_load
+; THUMB-STRICT-ALIGN: ldrb
+; THUMB-STRICT-ALIGN: ldrb
+
+ %0 = load i16* %x, align 1
+ ret i16 %0
+}
+
+define void @unaligned_i32_store(i32 %x, i32* %y) nounwind {
+entry:
+; ARM-STRICT-ALIGN: @unaligned_i32_store
+; ARM-STRICT-ALIGN: strb
+; ARM-STRICT-ALIGN: strb
+; ARM-STRICT-ALIGN: strb
+; ARM-STRICT-ALIGN: strb
+
+; THUMB-STRICT-ALIGN: @unaligned_i32_store
+; THUMB-STRICT-ALIGN: strb
+; THUMB-STRICT-ALIGN: strb
+; THUMB-STRICT-ALIGN: strb
+; THUMB-STRICT-ALIGN: strb
+
+ store i32 %x, i32* %y, align 1
+ ret void
+}
+
+define i32 @unaligned_i32_load(i32* %x) nounwind {
+entry:
+; ARM-STRICT-ALIGN: @unaligned_i32_load
+; ARM-STRICT-ALIGN: ldrb
+; ARM-STRICT-ALIGN: ldrb
+; ARM-STRICT-ALIGN: ldrb
+; ARM-STRICT-ALIGN: ldrb
+
+; THUMB-STRICT-ALIGN: @unaligned_i32_load
+; THUMB-STRICT-ALIGN: ldrb
+; THUMB-STRICT-ALIGN: ldrb
+; THUMB-STRICT-ALIGN: ldrb
+; THUMB-STRICT-ALIGN: ldrb
+
+ %0 = load i32* %x, align 1
+ ret i32 %0
}