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When constant evaluating the initializer for an object of vector type, we would call APInt::trunc() but truncate to the same bit-width the object already had, which would cause an assertion. Instead, use APInt::truncOrSelf() so that we no longer assert in this situation. Fix #50216
53 lines
1.9 KiB
C
53 lines
1.9 KiB
C
// RUN: %clang_cc1 %s -fsyntax-only -verify
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//typedef __attribute__(( ext_vector_type(4) )) float float4;
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typedef float float4 __attribute__((vector_size(16)));
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float4 foo = (float4){ 1.0, 2.0, 3.0, 4.0 };
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float4 foo2 = (float4){ 1.0, 2.0, 3.0, 4.0 , 5.0 }; // expected-warning{{excess elements in vector initializer}}
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float4 array[] = { 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0};
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int array_sizecheck[(sizeof(array) / sizeof(float4)) == 3 ? 1 : -1];
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float4 array2[2] = { 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0,
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9.0 }; // expected-warning {{excess elements in array initializer}}
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float4 array3[2] = { {1.0, 2.0, 3.0}, 5.0, 6.0, 7.0, 8.0,
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9.0 }; // expected-warning {{excess elements in array initializer}}
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// PR5650
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__attribute__((vector_size(16))) float f1(void) {
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__attribute__((vector_size(16))) float vec = {0.0f, 0.0f, 0.0f};
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return(vec);
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}
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__attribute__((vector_size(16))) float f2(
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__attribute__((vector_size(16))) float a1) {
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return(a1);
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}
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// PR5265
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typedef float __attribute__((ext_vector_type (3))) float3;
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int test2[sizeof(float3) == sizeof(float4) ? 1 : -1];
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// rdar://problem/8345836
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typedef long long __attribute__((vector_size(16))) longlong2;
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typedef short __attribute__((vector_size(16))) short8;
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typedef short __attribute__((vector_size(8))) short4;
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void test3(void) {
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extern short8 test3_helper(void);
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longlong2 arr1[2] = { test3_helper(), test3_helper() };
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short4 arr2[2] = { test3_helper(), test3_helper() }; // expected-error 2 {{initializing 'short4' (vector of 4 'short' values) with an expression of incompatible type 'short8' (vector of 8 'short' values)}}
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}
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// GH50216
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// These would previously crash when constant evaluating the initializers.
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typedef double float64x1_t __attribute__((vector_size(8)));
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float64x1_t arg1 = (float64x1_t)0x3fedf9d4343c7c80; // okay
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typedef float float32x1_t __attribute__((vector_size(4)));
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float32x1_t arg2 = (float32x1_t)0x3fedf9d4; // okay
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