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-rw-r--r--test/CodeGen/X86/sse-minmax.ll392
1 files changed, 392 insertions, 0 deletions
diff --git a/test/CodeGen/X86/sse-minmax.ll b/test/CodeGen/X86/sse-minmax.ll
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+++ b/test/CodeGen/X86/sse-minmax.ll
@@ -0,0 +1,392 @@
+; RUN: llc < %s -march=x86-64 -asm-verbose=false | FileCheck %s
+
+; Some of these patterns can be matched as SSE min or max. Some of
+; then can be matched provided that the operands are swapped.
+; Some of them can't be matched at all and require a comparison
+; and a conditional branch.
+
+; The naming convention is {,x_}{o,u}{gt,lt,ge,le}{,_inverse}
+; x_ : use 0.0 instead of %y
+; _inverse : swap the arms of the select.
+
+; CHECK: ogt:
+; CHECK-NEXT: maxsd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @ogt(double %x, double %y) nounwind {
+ %c = fcmp ogt double %x, %y
+ %d = select i1 %c, double %x, double %y
+ ret double %d
+}
+
+; CHECK: olt:
+; CHECK-NEXT: minsd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @olt(double %x, double %y) nounwind {
+ %c = fcmp olt double %x, %y
+ %d = select i1 %c, double %x, double %y
+ ret double %d
+}
+
+; CHECK: ogt_inverse:
+; CHECK-NEXT: minsd %xmm0, %xmm1
+; CHECK-NEXT: movapd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @ogt_inverse(double %x, double %y) nounwind {
+ %c = fcmp ogt double %x, %y
+ %d = select i1 %c, double %y, double %x
+ ret double %d
+}
+
+; CHECK: olt_inverse:
+; CHECK-NEXT: maxsd %xmm0, %xmm1
+; CHECK-NEXT: movapd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @olt_inverse(double %x, double %y) nounwind {
+ %c = fcmp olt double %x, %y
+ %d = select i1 %c, double %y, double %x
+ ret double %d
+}
+
+; CHECK: oge:
+; CHECK-NEXT: ucomisd %xmm1, %xmm0
+define double @oge(double %x, double %y) nounwind {
+ %c = fcmp oge double %x, %y
+ %d = select i1 %c, double %x, double %y
+ ret double %d
+}
+
+; CHECK: ole:
+; CHECK-NEXT: ucomisd %xmm0, %xmm1
+define double @ole(double %x, double %y) nounwind {
+ %c = fcmp ole double %x, %y
+ %d = select i1 %c, double %x, double %y
+ ret double %d
+}
+
+; CHECK: oge_inverse:
+; CHECK-NEXT: ucomisd %xmm1, %xmm0
+define double @oge_inverse(double %x, double %y) nounwind {
+ %c = fcmp oge double %x, %y
+ %d = select i1 %c, double %y, double %x
+ ret double %d
+}
+
+; CHECK: ole_inverse:
+; CHECK-NEXT: ucomisd %xmm0, %xmm1
+define double @ole_inverse(double %x, double %y) nounwind {
+ %c = fcmp ole double %x, %y
+ %d = select i1 %c, double %y, double %x
+ ret double %d
+}
+
+; CHECK: x_ogt:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: maxsd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_ogt(double %x) nounwind {
+ %c = fcmp ogt double %x, 0.000000e+00
+ %d = select i1 %c, double %x, double 0.000000e+00
+ ret double %d
+}
+
+; CHECK: x_olt:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: minsd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_olt(double %x) nounwind {
+ %c = fcmp olt double %x, 0.000000e+00
+ %d = select i1 %c, double %x, double 0.000000e+00
+ ret double %d
+}
+
+; CHECK: x_ogt_inverse:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: minsd %xmm0, %xmm1
+; CHECK-NEXT: movapd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_ogt_inverse(double %x) nounwind {
+ %c = fcmp ogt double %x, 0.000000e+00
+ %d = select i1 %c, double 0.000000e+00, double %x
+ ret double %d
+}
+
+; CHECK: x_olt_inverse:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: maxsd %xmm0, %xmm1
+; CHECK-NEXT: movapd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_olt_inverse(double %x) nounwind {
+ %c = fcmp olt double %x, 0.000000e+00
+ %d = select i1 %c, double 0.000000e+00, double %x
+ ret double %d
+}
+
+; CHECK: x_oge:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: maxsd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_oge(double %x) nounwind {
+ %c = fcmp oge double %x, 0.000000e+00
+ %d = select i1 %c, double %x, double 0.000000e+00
+ ret double %d
+}
+
+; CHECK: x_ole:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: minsd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_ole(double %x) nounwind {
+ %c = fcmp ole double %x, 0.000000e+00
+ %d = select i1 %c, double %x, double 0.000000e+00
+ ret double %d
+}
+
+; CHECK: x_oge_inverse:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: minsd %xmm0, %xmm1
+; CHECK-NEXT: movapd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_oge_inverse(double %x) nounwind {
+ %c = fcmp oge double %x, 0.000000e+00
+ %d = select i1 %c, double 0.000000e+00, double %x
+ ret double %d
+}
+
+; CHECK: x_ole_inverse:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: maxsd %xmm0, %xmm1
+; CHECK-NEXT: movapd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_ole_inverse(double %x) nounwind {
+ %c = fcmp ole double %x, 0.000000e+00
+ %d = select i1 %c, double 0.000000e+00, double %x
+ ret double %d
+}
+
+; CHECK: ugt:
+; CHECK-NEXT: ucomisd %xmm0, %xmm1
+define double @ugt(double %x, double %y) nounwind {
+ %c = fcmp ugt double %x, %y
+ %d = select i1 %c, double %x, double %y
+ ret double %d
+}
+
+; CHECK: ult:
+; CHECK-NEXT: ucomisd %xmm1, %xmm0
+define double @ult(double %x, double %y) nounwind {
+ %c = fcmp ult double %x, %y
+ %d = select i1 %c, double %x, double %y
+ ret double %d
+}
+
+; CHECK: ugt_inverse:
+; CHECK-NEXT: ucomisd %xmm0, %xmm1
+define double @ugt_inverse(double %x, double %y) nounwind {
+ %c = fcmp ugt double %x, %y
+ %d = select i1 %c, double %y, double %x
+ ret double %d
+}
+
+; CHECK: ult_inverse:
+; CHECK-NEXT: ucomisd %xmm1, %xmm0
+define double @ult_inverse(double %x, double %y) nounwind {
+ %c = fcmp ult double %x, %y
+ %d = select i1 %c, double %y, double %x
+ ret double %d
+}
+
+; CHECK: uge:
+; CHECK-NEXT: maxsd %xmm0, %xmm1
+; CHECK-NEXT: movapd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @uge(double %x, double %y) nounwind {
+ %c = fcmp uge double %x, %y
+ %d = select i1 %c, double %x, double %y
+ ret double %d
+}
+
+; CHECK: ule:
+; CHECK-NEXT: minsd %xmm0, %xmm1
+; CHECK-NEXT: movapd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @ule(double %x, double %y) nounwind {
+ %c = fcmp ule double %x, %y
+ %d = select i1 %c, double %x, double %y
+ ret double %d
+}
+
+; CHECK: uge_inverse:
+; CHECK-NEXT: minsd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @uge_inverse(double %x, double %y) nounwind {
+ %c = fcmp uge double %x, %y
+ %d = select i1 %c, double %y, double %x
+ ret double %d
+}
+
+; CHECK: ule_inverse:
+; CHECK-NEXT: maxsd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @ule_inverse(double %x, double %y) nounwind {
+ %c = fcmp ule double %x, %y
+ %d = select i1 %c, double %y, double %x
+ ret double %d
+}
+
+; CHECK: x_ugt:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: maxsd %xmm0, %xmm1
+; CHECK-NEXT: movapd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_ugt(double %x) nounwind {
+ %c = fcmp ugt double %x, 0.000000e+00
+ %d = select i1 %c, double %x, double 0.000000e+00
+ ret double %d
+}
+
+; CHECK: x_ult:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: minsd %xmm0, %xmm1
+; CHECK-NEXT: movapd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_ult(double %x) nounwind {
+ %c = fcmp ult double %x, 0.000000e+00
+ %d = select i1 %c, double %x, double 0.000000e+00
+ ret double %d
+}
+
+; CHECK: x_ugt_inverse:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: minsd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_ugt_inverse(double %x) nounwind {
+ %c = fcmp ugt double %x, 0.000000e+00
+ %d = select i1 %c, double 0.000000e+00, double %x
+ ret double %d
+}
+
+; CHECK: x_ult_inverse:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: maxsd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_ult_inverse(double %x) nounwind {
+ %c = fcmp ult double %x, 0.000000e+00
+ %d = select i1 %c, double 0.000000e+00, double %x
+ ret double %d
+}
+
+; CHECK: x_uge:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: maxsd %xmm0, %xmm1
+; CHECK-NEXT: movapd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_uge(double %x) nounwind {
+ %c = fcmp uge double %x, 0.000000e+00
+ %d = select i1 %c, double %x, double 0.000000e+00
+ ret double %d
+}
+
+; CHECK: x_ule:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: minsd %xmm0, %xmm1
+; CHECK-NEXT: movapd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_ule(double %x) nounwind {
+ %c = fcmp ule double %x, 0.000000e+00
+ %d = select i1 %c, double %x, double 0.000000e+00
+ ret double %d
+}
+
+; CHECK: x_uge_inverse:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: minsd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_uge_inverse(double %x) nounwind {
+ %c = fcmp uge double %x, 0.000000e+00
+ %d = select i1 %c, double 0.000000e+00, double %x
+ ret double %d
+}
+
+; CHECK: x_ule_inverse:
+; CHECK-NEXT: pxor %xmm1, %xmm1
+; CHECK-NEXT: maxsd %xmm1, %xmm0
+; CHECK-NEXT: ret
+define double @x_ule_inverse(double %x) nounwind {
+ %c = fcmp ule double %x, 0.000000e+00
+ %d = select i1 %c, double 0.000000e+00, double %x
+ ret double %d
+}
+
+; Test a few more misc. cases.
+
+; CHECK: clampTo3k_a:
+; CHECK: minsd
+define double @clampTo3k_a(double %x) nounwind readnone {
+entry:
+ %0 = fcmp ogt double %x, 3.000000e+03 ; <i1> [#uses=1]
+ %x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
+ ret double %x_addr.0
+}
+
+; CHECK: clampTo3k_b:
+; CHECK: minsd
+define double @clampTo3k_b(double %x) nounwind readnone {
+entry:
+ %0 = fcmp uge double %x, 3.000000e+03 ; <i1> [#uses=1]
+ %x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
+ ret double %x_addr.0
+}
+
+; CHECK: clampTo3k_c:
+; CHECK: maxsd
+define double @clampTo3k_c(double %x) nounwind readnone {
+entry:
+ %0 = fcmp olt double %x, 3.000000e+03 ; <i1> [#uses=1]
+ %x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
+ ret double %x_addr.0
+}
+
+; CHECK: clampTo3k_d:
+; CHECK: maxsd
+define double @clampTo3k_d(double %x) nounwind readnone {
+entry:
+ %0 = fcmp ule double %x, 3.000000e+03 ; <i1> [#uses=1]
+ %x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
+ ret double %x_addr.0
+}
+
+; CHECK: clampTo3k_e:
+; CHECK: maxsd
+define double @clampTo3k_e(double %x) nounwind readnone {
+entry:
+ %0 = fcmp olt double %x, 3.000000e+03 ; <i1> [#uses=1]
+ %x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
+ ret double %x_addr.0
+}
+
+; CHECK: clampTo3k_f:
+; CHECK: maxsd
+define double @clampTo3k_f(double %x) nounwind readnone {
+entry:
+ %0 = fcmp ule double %x, 3.000000e+03 ; <i1> [#uses=1]
+ %x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
+ ret double %x_addr.0
+}
+
+; CHECK: clampTo3k_g:
+; CHECK: minsd
+define double @clampTo3k_g(double %x) nounwind readnone {
+entry:
+ %0 = fcmp ogt double %x, 3.000000e+03 ; <i1> [#uses=1]
+ %x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
+ ret double %x_addr.0
+}
+
+; CHECK: clampTo3k_h:
+; CHECK: minsd
+define double @clampTo3k_h(double %x) nounwind readnone {
+entry:
+ %0 = fcmp uge double %x, 3.000000e+03 ; <i1> [#uses=1]
+ %x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
+ ret double %x_addr.0
+}
generated by cgit v1.1 at 2025-08-15 12:35:38 +0000