158d72d728
Set the writable and dead_on_unwind attributes for sret arguments. These indicate that the argument points to writable memory (and it's legal to introduce spurious writes to it on entry to the function) and that the argument memory will not be used if the call unwinds. This enables additional MemCpyOpt/DSE/LICM optimizations.
141 lines
6.5 KiB
C
141 lines
6.5 KiB
C
// RUN: %clang_cc1 %s -triple=renderscript32-none-linux-gnueabi -emit-llvm -o - -Werror | FileCheck %s -check-prefix=CHECK-RS32
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// RUN: %clang_cc1 %s -triple=renderscript64-none-linux-android -emit-llvm -o - -Werror | FileCheck %s -check-prefix=CHECK-RS64
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// RUN: %clang_cc1 %s -triple=armv7-none-linux-gnueabi -emit-llvm -o - -Werror | FileCheck %s -check-prefix=CHECK-ARM
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// Ensure that the bitcode has the correct triple
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// CHECK-RS32: target triple = "armv7-none-linux-gnueabi"
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// CHECK-RS64: target triple = "aarch64-none-linux-android"
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// CHECK-ARM: target triple = "armv7-none-linux-gnueabi"
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// Ensure that long data type has 8-byte size and alignment in RenderScript
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#ifdef __RENDERSCRIPT__
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#define LONG_WIDTH_AND_ALIGN 8
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#else
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#define LONG_WIDTH_AND_ALIGN 4
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#endif
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_Static_assert(sizeof(long) == LONG_WIDTH_AND_ALIGN, "sizeof long is wrong");
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_Static_assert(_Alignof(long) == LONG_WIDTH_AND_ALIGN, "sizeof long is wrong");
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// CHECK-RS32: i64 @test_long(i64 noundef %v)
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// CHECK-RS64: i64 @test_long(i64 noundef %v)
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// CHECK-ARM: i32 @test_long(i32 noundef %v)
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long test_long(long v) {
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return v + 1;
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}
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// =============================================================================
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// Test coercion of aggregate argument or return value into integer arrays
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// =============================================================================
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// =============================================================================
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// aggregate parameter <= 4 bytes: coerced to [a x iNN] for both 32-bit and
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// 64-bit RenderScript
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// ==============================================================================
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typedef struct {char c1, c2, c3; } sChar3;
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typedef struct {short s; char c;} sShortChar;
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// CHECK-RS32: void @argChar3([3 x i8] %s.coerce)
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// CHECK-RS64: void @argChar3([3 x i8] %s.coerce)
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void argChar3(sChar3 s) {}
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// CHECK-RS32: void @argShortChar([2 x i16] %s.coerce)
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// CHECK-RS64: void @argShortChar([2 x i16] %s.coerce)
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void argShortChar(sShortChar s) {}
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// =============================================================================
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// aggregate return value <= 4 bytes: coerced to [a x iNN] for both 32-bit and
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// 64-bit RenderScript
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// =============================================================================
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// CHECK-RS32: [3 x i8] @retChar3()
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// CHECK-RS64: [3 x i8] @retChar3()
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sChar3 retChar3(void) { sChar3 r; return r; }
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// CHECK-RS32: [2 x i16] @retShortChar()
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// CHECK-RS64: [2 x i16] @retShortChar()
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sShortChar retShortChar(void) { sShortChar r; return r; }
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// =============================================================================
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// aggregate parameter <= 16 bytes: coerced to [a x iNN] for both 32-bit and
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// 64-bit RenderScript
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// =============================================================================
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typedef struct {short s1; char c; short s2; } sShortCharShort;
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typedef struct {int i; short s; char c; } sIntShortChar;
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typedef struct {long l; int i; } sLongInt;
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// CHECK-RS32: void @argShortCharShort([3 x i16] %s.coerce)
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// CHECK-RS64: void @argShortCharShort([3 x i16] %s.coerce)
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void argShortCharShort(sShortCharShort s) {}
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// CHECK-RS32: void @argIntShortChar([2 x i32] %s.coerce)
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// CHECK-RS64: void @argIntShortChar([2 x i32] %s.coerce)
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void argIntShortChar(sIntShortChar s) {}
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// CHECK-RS32: void @argLongInt([2 x i64] %s.coerce)
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// CHECK-RS64: void @argLongInt([2 x i64] %s.coerce)
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void argLongInt(sLongInt s) {}
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// =============================================================================
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// aggregate return value <= 16 bytes: returned on stack for 32-bit RenderScript
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// and coerced to [a x iNN] for 64-bit RenderScript
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// =============================================================================
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// CHECK-RS32: void @retShortCharShort(ptr dead_on_unwind noalias writable sret(%struct.sShortCharShort) align 2 %agg.result)
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// CHECK-RS64: [3 x i16] @retShortCharShort()
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sShortCharShort retShortCharShort(void) { sShortCharShort r; return r; }
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// CHECK-RS32: void @retIntShortChar(ptr dead_on_unwind noalias writable sret(%struct.sIntShortChar) align 4 %agg.result)
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// CHECK-RS64: [2 x i32] @retIntShortChar()
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sIntShortChar retIntShortChar(void) { sIntShortChar r; return r; }
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// CHECK-RS32: void @retLongInt(ptr dead_on_unwind noalias writable sret(%struct.sLongInt) align 8 %agg.result)
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// CHECK-RS64: [2 x i64] @retLongInt()
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sLongInt retLongInt(void) { sLongInt r; return r; }
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// =============================================================================
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// aggregate parameter <= 64 bytes: coerced to [a x iNN] for 32-bit RenderScript
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// and passed on the stack for 64-bit RenderScript
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// =============================================================================
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typedef struct {int i1, i2, i3, i4, i5; } sInt5;
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typedef struct {long l1, l2; char c; } sLong2Char;
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// CHECK-RS32: void @argInt5([5 x i32] %s.coerce)
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// CHECK-RS64: void @argInt5(ptr noundef %s)
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void argInt5(sInt5 s) {}
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// CHECK-RS32: void @argLong2Char([3 x i64] %s.coerce)
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// CHECK-RS64: void @argLong2Char(ptr noundef %s)
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void argLong2Char(sLong2Char s) {}
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// =============================================================================
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// aggregate return value <= 64 bytes: returned on stack for both 32-bit and
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// 64-bit RenderScript
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// =============================================================================
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// CHECK-RS32: void @retInt5(ptr dead_on_unwind noalias writable sret(%struct.sInt5) align 4 %agg.result)
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// CHECK-RS64: void @retInt5(ptr dead_on_unwind noalias writable sret(%struct.sInt5) align 4 %agg.result)
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sInt5 retInt5(void) { sInt5 r; return r;}
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// CHECK-RS32: void @retLong2Char(ptr dead_on_unwind noalias writable sret(%struct.sLong2Char) align 8 %agg.result)
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// CHECK-RS64: void @retLong2Char(ptr dead_on_unwind noalias writable sret(%struct.sLong2Char) align 8 %agg.result)
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sLong2Char retLong2Char(void) { sLong2Char r; return r;}
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// =============================================================================
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// aggregate parameters and return values > 64 bytes: passed and returned on the
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// stack for both 32-bit and 64-bit RenderScript
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// =============================================================================
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typedef struct {long l1, l2, l3, l4, l5, l6, l7, l8, l9; } sLong9;
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// CHECK-RS32: void @argLong9(ptr noundef byval(%struct.sLong9) align 8 %s)
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// CHECK-RS64: void @argLong9(ptr noundef %s)
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void argLong9(sLong9 s) {}
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// CHECK-RS32: void @retLong9(ptr dead_on_unwind noalias writable sret(%struct.sLong9) align 8 %agg.result)
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// CHECK-RS64: void @retLong9(ptr dead_on_unwind noalias writable sret(%struct.sLong9) align 8 %agg.result)
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sLong9 retLong9(void) { sLong9 r; return r; }
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