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	HLSL's % operator results in less precise results than expected. Bug: tint:1799 Change-Id: I1a9572288a0e536f0fc9c0748a25dcf58551e57b Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/119760 Kokoro: Kokoro <noreply+kokoro@google.com> Kokoro: Ben Clayton <bclayton@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Commit-Queue: Antonio Maiorano <amaiorano@google.com>
		
			
				
	
	
		
			36 lines
		
	
	
		
			864 B
		
	
	
	
		
			HLSL
		
	
	
	
	
	
			
		
		
	
	
			36 lines
		
	
	
		
			864 B
		
	
	
	
		
			HLSL
		
	
	
	
	
	
| [numthreads(1, 1, 1)]
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| void unused_entry_point() {
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|   return;
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| }
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| 
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| static int a = 0;
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| static float b = 0.0f;
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| 
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| int tint_div(int lhs, int rhs) {
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|   return (lhs / (((rhs == 0) | ((lhs == -2147483648) & (rhs == -1))) ? 1 : rhs));
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| }
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| 
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| int tint_mod(int lhs, int rhs) {
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|   const int rhs_or_one = (((rhs == 0) | ((lhs == -2147483648) & (rhs == -1))) ? 1 : rhs);
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|   if (any(((uint((lhs | rhs_or_one)) & 2147483648u) != 0u))) {
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|     return (lhs - ((lhs / rhs_or_one) * rhs_or_one));
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|   } else {
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|     return (lhs % rhs_or_one);
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|   }
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| }
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| 
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| float tint_float_mod(float lhs, float rhs) {
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|   return (lhs - (trunc((lhs / rhs)) * rhs));
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| }
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| 
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| void foo(int maybe_zero) {
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|   a = tint_div(a, 0);
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|   a = tint_mod(a, 0);
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|   a = tint_div(a, maybe_zero);
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|   a = tint_mod(a, maybe_zero);
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|   b = (b / 0.0f);
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|   b = tint_float_mod(b, 0.0f);
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|   b = (b / float(maybe_zero));
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|   b = tint_float_mod(b, float(maybe_zero));
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| }
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