| 1 | // REQUIRES: x86-registered-target |
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| 2 | // RUN: %clang_cc1 %s -triple i686-pc-windows-msvc -emit-llvm -o - -fasm-blocks | FileCheck %s |
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| 3 | |
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| 4 | // Check that we take EAX or EAX:EDX and return it from these functions for MSVC |
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| 5 | // compatibility. |
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| 6 | |
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| 7 | extern "C" { |
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| 8 | |
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| 9 | long long f_i64() { |
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| 10 | __asm { |
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| 11 | mov eax, 1 |
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| 12 | mov edx, 1 |
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| 13 | } |
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| 14 | } |
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| 15 | // CHECK-LABEL: define dso_local i64 @f_i64() |
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| 16 | // CHECK: %[[r:[^ ]*]] = call i64 asm sideeffect inteldialect "mov eax, $$1\0A\09mov edx, $$1", "=A,~{eax},{{.*}}" |
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| 17 | // CHECK: ret i64 %[[r]] |
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| 18 | |
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| 19 | int f_i32() { |
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| 20 | __asm { |
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| 21 | mov eax, 1 |
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| 22 | mov edx, 1 |
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| 23 | } |
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| 24 | } |
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| 25 | // CHECK-LABEL: define dso_local i32 @f_i32() |
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| 26 | // CHECK: %[[r:[^ ]*]] = call i32 asm sideeffect inteldialect "mov eax, $$1\0A\09mov edx, $$1", "={eax},~{eax},{{.*}}" |
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| 27 | // CHECK: ret i32 %[[r]] |
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| 28 | |
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| 29 | short f_i16() { |
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| 30 | __asm { |
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| 31 | mov eax, 1 |
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| 32 | mov edx, 1 |
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| 33 | } |
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| 34 | } |
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| 35 | // CHECK-LABEL: define dso_local signext i16 @f_i16() |
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| 36 | // CHECK: %[[r:[^ ]*]] = call i32 asm sideeffect inteldialect "mov eax, $$1\0A\09mov edx, $$1", "={eax},~{eax},{{.*}}" |
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| 37 | // CHECK: %[[r_i16:[^ ]*]] = trunc i32 %[[r]] to i16 |
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| 38 | // CHECK: ret i16 %[[r_i16]] |
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| 39 | |
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| 40 | char f_i8() { |
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| 41 | __asm { |
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| 42 | mov eax, 1 |
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| 43 | mov edx, 1 |
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| 44 | } |
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| 45 | } |
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| 46 | // CHECK-LABEL: define dso_local signext i8 @f_i8() |
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| 47 | // CHECK: %[[r:[^ ]*]] = call i32 asm sideeffect inteldialect "mov eax, $$1\0A\09mov edx, $$1", "={eax},~{eax},{{.*}}" |
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| 48 | // CHECK: %[[r_i8:[^ ]*]] = trunc i32 %[[r]] to i8 |
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| 49 | // CHECK: ret i8 %[[r_i8]] |
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| 50 | |
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| 51 | bool f_i1() { |
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| 52 | __asm { |
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| 53 | mov eax, 1L |
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| 54 | mov edx, 1U |
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| 55 | } |
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| 56 | } |
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| 57 | // CHECK-LABEL: define dso_local zeroext i1 @f_i1() |
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| 58 | // CHECK: %[[r:[^ ]*]] = call i32 asm sideeffect inteldialect "mov eax, $$1\0A\09mov edx, $$1", "={eax},~{eax},{{.*}}" |
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| 59 | // CHECK: %[[r_i8:[^ ]*]] = trunc i32 %[[r]] to i8 |
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| 60 | // CHECK: store i8 %[[r_i8]], i8* %{{.*}} |
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| 61 | // CHECK: %[[r_i1:[^ ]*]] = load i1, i1* %{{.*}} |
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| 62 | // CHECK: ret i1 %[[r_i1]] |
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| 63 | |
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| 64 | struct FourChars { |
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| 65 | char a, b, c, d; |
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| 66 | }; |
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| 67 | FourChars f_s4() { |
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| 68 | __asm { |
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| 69 | mov eax, 0x01010101 |
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| 70 | } |
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| 71 | } |
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| 72 | // CHECK-LABEL: define dso_local i32 @f_s4() |
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| 73 | // CHECK: %[[r:[^ ]*]] = call i32 asm sideeffect inteldialect "mov eax, $$16843009", "={eax},~{eax},{{.*}}" |
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| 74 | // CHECK: store i32 %[[r]], i32* %{{.*}} |
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| 75 | // CHECK: %[[r_i32:[^ ]*]] = load i32, i32* %{{.*}} |
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| 76 | // CHECK: ret i32 %[[r_i32]] |
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| 77 | |
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| 78 | struct EightChars { |
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| 79 | char a, b, c, d, e, f, g, h; |
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| 80 | }; |
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| 81 | EightChars f_s8() { |
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| 82 | __asm { |
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| 83 | mov eax, 01010101h |
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| 84 | mov edx, 01010101b |
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| 85 | } |
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| 86 | } |
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| 87 | // CHECK-LABEL: define dso_local i64 @f_s8() |
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| 88 | // CHECK: %[[r:[^ ]*]] = call i64 asm sideeffect inteldialect "mov eax, $$16843009\0A\09mov edx, $$85", "=A,~{eax},{{.*}}" |
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| 89 | // CHECK: store i64 %[[r]], i64* %{{.*}} |
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| 90 | // CHECK: %[[r_i64:[^ ]*]] = load i64, i64* %{{.*}} |
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| 91 | // CHECK: ret i64 %[[r_i64]] |
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| 92 | |
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| 93 | } // extern "C" |
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| 94 | |
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| 95 | int main() { |
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| 96 | __asm xor eax, eax |
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| 97 | } |
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| 98 | // CHECK-LABEL: define dso_local i32 @main() |
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| 99 | // CHECK: %[[r:[^ ]*]] = call i32 asm sideeffect inteldialect "xor eax, eax", "={eax},{{.*}}" |
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| 100 | // CHECK: ret i32 %[[r]] |
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| 101 | |
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