shader_jit_a64_compiler: Improve MAX, MIN (#7137)
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@ -548,13 +548,8 @@ void JitShader::Compile_MAX(Instruction instr) {
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Compile_SwizzleSrc(instr, 1, instr.common.src1, SRC1);
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Compile_SwizzleSrc(instr, 2, instr.common.src2, SRC2);
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// VSCRATCH0 = Ordinal(SRC1)
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FCMEQ(VSCRATCH0.S4(), SRC1.S4(), SRC1.S4());
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// FMAX will always pick the NaN
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FMAX(SRC1.S4(), SRC1.S4(), SRC2.S4());
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// In the case of NaN, pick SRC2
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// Equivalent to (b < a) ? a : b with associated NaN caveats
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FCMGT(VSCRATCH0.S4(), SRC1.S4(), SRC2.S4());
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BIF(SRC1.B16(), SRC2.B16(), VSCRATCH0.B16());
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Compile_DestEnable(instr, SRC1);
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@ -564,13 +559,8 @@ void JitShader::Compile_MIN(Instruction instr) {
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Compile_SwizzleSrc(instr, 1, instr.common.src1, SRC1);
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Compile_SwizzleSrc(instr, 2, instr.common.src2, SRC2);
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// VSCRATCH0 = Ordinal(SRC1)
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FCMEQ(VSCRATCH0.S4(), SRC1.S4(), SRC1.S4());
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// FMIN will always pick the NaN
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FMIN(SRC1.S4(), SRC1.S4(), SRC2.S4());
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// In the case of NaN, pick SRC2
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// Equivalent to (a < b) ? a : b with associated NaN caveats
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FCMGT(VSCRATCH0.S4(), SRC2.S4(), SRC1.S4());
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BIF(SRC1.B16(), SRC2.B16(), VSCRATCH0.B16());
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Compile_DestEnable(instr, SRC1);
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