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llvm-project/llvm/test/CodeGen/PowerPC/fsel.ll

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[PPC] Adjust some PowerPC tests to account for presence/absence of VSX Patch by Bill Seurer; committed on his behalf. These test cases generate slightly different code sequences when VSX is activated and thus fail. The update turns off VSX explicitly for the existing checks and then adds a second set of checks for most of them that test the VSX instruction output. llvm-svn: 220019
2014-10-17 09:41:22 +08:00
; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -mattr=-vsx | FileCheck %s
; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -enable-no-infs-fp-math -enable-no-nans-fp-math -mattr=-vsx | FileCheck -check-prefix=CHECK-FM %s
; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -enable-no-infs-fp-math -enable-no-nans-fp-math -mattr=+vsx | FileCheck -check-prefix=CHECK-FM-VSX %s
Cleanup and improve PPC fsel generation First, we should not cheat: fsel-based lowering of select_cc is a finite-math-only optimization (the ISA manual, section F.3 of v2.06, makes this clear, as does a note in our own README). This also adds fsel-based lowering of EQ and NE condition codes. As it turned out, fsel generation was covered by a grand total of zero regression test cases. I've added some test cases to cover the existing behavior (which is now finite-math only), as well as the new EQ cases. llvm-svn: 179000
2013-04-08 06:11:09 +08:00
target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
define double @zerocmp1(double %a, double %y, double %z) #0 {
entry:
%cmp = fcmp ult double %a, 0.000000e+00
%z.y = select i1 %cmp, double %z, double %y
ret double %z.y
; CHECK: @zerocmp1
; CHECK-NOT: fsel
; CHECK: blr
; CHECK-FM: @zerocmp1
; CHECK-FM: fsel 1, 1, 2, 3
; CHECK-FM: blr
[PPC] Adjust some PowerPC tests to account for presence/absence of VSX Patch by Bill Seurer; committed on his behalf. These test cases generate slightly different code sequences when VSX is activated and thus fail. The update turns off VSX explicitly for the existing checks and then adds a second set of checks for most of them that test the VSX instruction output. llvm-svn: 220019
2014-10-17 09:41:22 +08:00
; CHECK-FM-VSX: @zerocmp1
; CHECK-FM-VSX: fsel 1, 1, 2, 3
; CHECK-FM-VSX: blr
Cleanup and improve PPC fsel generation First, we should not cheat: fsel-based lowering of select_cc is a finite-math-only optimization (the ISA manual, section F.3 of v2.06, makes this clear, as does a note in our own README). This also adds fsel-based lowering of EQ and NE condition codes. As it turned out, fsel generation was covered by a grand total of zero regression test cases. I've added some test cases to cover the existing behavior (which is now finite-math only), as well as the new EQ cases. llvm-svn: 179000
2013-04-08 06:11:09 +08:00
}
define double @zerocmp2(double %a, double %y, double %z) #0 {
entry:
%cmp = fcmp ogt double %a, 0.000000e+00
%y.z = select i1 %cmp, double %y, double %z
ret double %y.z
; CHECK: @zerocmp2
; CHECK-NOT: fsel
; CHECK: blr
; CHECK-FM: @zerocmp2
; CHECK-FM: fneg [[REG:[0-9]+]], 1
; CHECK-FM: fsel 1, [[REG]], 3, 2
; CHECK-FM: blr
[PPC] Adjust some PowerPC tests to account for presence/absence of VSX Patch by Bill Seurer; committed on his behalf. These test cases generate slightly different code sequences when VSX is activated and thus fail. The update turns off VSX explicitly for the existing checks and then adds a second set of checks for most of them that test the VSX instruction output. llvm-svn: 220019
2014-10-17 09:41:22 +08:00
; CHECK-FM-VSX: @zerocmp2
; CHECK-FM-VSX: xsnegdp [[REG:[0-9]+]], 1
; CHECK-FM-VSX: fsel 1, [[REG]], 3, 2
; CHECK-FM-VSX: blr
Cleanup and improve PPC fsel generation First, we should not cheat: fsel-based lowering of select_cc is a finite-math-only optimization (the ISA manual, section F.3 of v2.06, makes this clear, as does a note in our own README). This also adds fsel-based lowering of EQ and NE condition codes. As it turned out, fsel generation was covered by a grand total of zero regression test cases. I've added some test cases to cover the existing behavior (which is now finite-math only), as well as the new EQ cases. llvm-svn: 179000
2013-04-08 06:11:09 +08:00
}
define double @zerocmp3(double %a, double %y, double %z) #0 {
entry:
%cmp = fcmp oeq double %a, 0.000000e+00
%y.z = select i1 %cmp, double %y, double %z
ret double %y.z
; CHECK: @zerocmp3
; CHECK-NOT: fsel
; CHECK: blr
; CHECK-FM: @zerocmp3
; CHECK-FM: fsel [[REG:[0-9]+]], 1, 2, 3
; CHECK-FM: fneg [[REG2:[0-9]+]], 1
; CHECK-FM: fsel 1, [[REG2]], [[REG]], 3
; CHECK-FM: blr
[PPC] Adjust some PowerPC tests to account for presence/absence of VSX Patch by Bill Seurer; committed on his behalf. These test cases generate slightly different code sequences when VSX is activated and thus fail. The update turns off VSX explicitly for the existing checks and then adds a second set of checks for most of them that test the VSX instruction output. llvm-svn: 220019
2014-10-17 09:41:22 +08:00
; CHECK-FM-VSX: @zerocmp3
; CHECK-FM-VSX: xsnegdp [[REG2:[0-9]+]], 1
; CHECK-FM-VSX: fsel [[REG:[0-9]+]], 1, 2, 3
; CHECK-FM-VSX: fsel 1, [[REG2]], [[REG]], 3
; CHECK-FM-VSX: blr
Cleanup and improve PPC fsel generation First, we should not cheat: fsel-based lowering of select_cc is a finite-math-only optimization (the ISA manual, section F.3 of v2.06, makes this clear, as does a note in our own README). This also adds fsel-based lowering of EQ and NE condition codes. As it turned out, fsel generation was covered by a grand total of zero regression test cases. I've added some test cases to cover the existing behavior (which is now finite-math only), as well as the new EQ cases. llvm-svn: 179000
2013-04-08 06:11:09 +08:00
}
define double @min1(double %a, double %b) #0 {
entry:
%cmp = fcmp ole double %a, %b
%cond = select i1 %cmp, double %a, double %b
ret double %cond
; CHECK: @min1
; CHECK-NOT: fsel
; CHECK: blr
; CHECK-FM: @min1
; CHECK-FM: fsub [[REG:[0-9]+]], 2, 1
; CHECK-FM: fsel 1, [[REG]], 1, 2
; CHECK-FM: blr
[PPC] Adjust some PowerPC tests to account for presence/absence of VSX Patch by Bill Seurer; committed on his behalf. These test cases generate slightly different code sequences when VSX is activated and thus fail. The update turns off VSX explicitly for the existing checks and then adds a second set of checks for most of them that test the VSX instruction output. llvm-svn: 220019
2014-10-17 09:41:22 +08:00
; CHECK-FM-VSX: @min1
; CHECK-FM-VSX: xssubdp [[REG:[0-9]+]], 2, 1
; CHECK-FM-VSX: fsel 1, [[REG]], 1, 2
; CHECK-FM-VSX: blr
Cleanup and improve PPC fsel generation First, we should not cheat: fsel-based lowering of select_cc is a finite-math-only optimization (the ISA manual, section F.3 of v2.06, makes this clear, as does a note in our own README). This also adds fsel-based lowering of EQ and NE condition codes. As it turned out, fsel generation was covered by a grand total of zero regression test cases. I've added some test cases to cover the existing behavior (which is now finite-math only), as well as the new EQ cases. llvm-svn: 179000
2013-04-08 06:11:09 +08:00
}
define double @max1(double %a, double %b) #0 {
entry:
%cmp = fcmp oge double %a, %b
%cond = select i1 %cmp, double %a, double %b
ret double %cond
; CHECK: @max1
; CHECK-NOT: fsel
; CHECK: blr
; CHECK-FM: @max1
; CHECK-FM: fsub [[REG:[0-9]+]], 1, 2
; CHECK-FM: fsel 1, [[REG]], 1, 2
; CHECK-FM: blr
[PPC] Adjust some PowerPC tests to account for presence/absence of VSX Patch by Bill Seurer; committed on his behalf. These test cases generate slightly different code sequences when VSX is activated and thus fail. The update turns off VSX explicitly for the existing checks and then adds a second set of checks for most of them that test the VSX instruction output. llvm-svn: 220019
2014-10-17 09:41:22 +08:00
; CHECK-FM-VSX: @max1
; CHECK-FM-VSX: xssubdp [[REG:[0-9]+]], 1, 2
; CHECK-FM-VSX: fsel 1, [[REG]], 1, 2
; CHECK-FM-VSX: blr
Cleanup and improve PPC fsel generation First, we should not cheat: fsel-based lowering of select_cc is a finite-math-only optimization (the ISA manual, section F.3 of v2.06, makes this clear, as does a note in our own README). This also adds fsel-based lowering of EQ and NE condition codes. As it turned out, fsel generation was covered by a grand total of zero regression test cases. I've added some test cases to cover the existing behavior (which is now finite-math only), as well as the new EQ cases. llvm-svn: 179000
2013-04-08 06:11:09 +08:00
}
define double @cmp1(double %a, double %b, double %y, double %z) #0 {
entry:
%cmp = fcmp ult double %a, %b
%z.y = select i1 %cmp, double %z, double %y
ret double %z.y
; CHECK: @cmp1
; CHECK-NOT: fsel
; CHECK: blr
; CHECK-FM: @cmp1
; CHECK-FM: fsub [[REG:[0-9]+]], 1, 2
; CHECK-FM: fsel 1, [[REG]], 3, 4
; CHECK-FM: blr
[PPC] Adjust some PowerPC tests to account for presence/absence of VSX Patch by Bill Seurer; committed on his behalf. These test cases generate slightly different code sequences when VSX is activated and thus fail. The update turns off VSX explicitly for the existing checks and then adds a second set of checks for most of them that test the VSX instruction output. llvm-svn: 220019
2014-10-17 09:41:22 +08:00
; CHECK-FM-VSX: @cmp1
; CHECK-FM-VSX: xssubdp [[REG:[0-9]+]], 1, 2
; CHECK-FM-VSX: fsel 1, [[REG]], 3, 4
; CHECK-FM-VSX: blr
Cleanup and improve PPC fsel generation First, we should not cheat: fsel-based lowering of select_cc is a finite-math-only optimization (the ISA manual, section F.3 of v2.06, makes this clear, as does a note in our own README). This also adds fsel-based lowering of EQ and NE condition codes. As it turned out, fsel generation was covered by a grand total of zero regression test cases. I've added some test cases to cover the existing behavior (which is now finite-math only), as well as the new EQ cases. llvm-svn: 179000
2013-04-08 06:11:09 +08:00
}
define double @cmp2(double %a, double %b, double %y, double %z) #0 {
entry:
%cmp = fcmp ogt double %a, %b
%y.z = select i1 %cmp, double %y, double %z
ret double %y.z
; CHECK: @cmp2
; CHECK-NOT: fsel
; CHECK: blr
; CHECK-FM: @cmp2
; CHECK-FM: fsub [[REG:[0-9]+]], 2, 1
; CHECK-FM: fsel 1, [[REG]], 4, 3
; CHECK-FM: blr
[PPC] Adjust some PowerPC tests to account for presence/absence of VSX Patch by Bill Seurer; committed on his behalf. These test cases generate slightly different code sequences when VSX is activated and thus fail. The update turns off VSX explicitly for the existing checks and then adds a second set of checks for most of them that test the VSX instruction output. llvm-svn: 220019
2014-10-17 09:41:22 +08:00
; CHECK-FM-VSX: @cmp2
; CHECK-FM-VSX: xssubdp [[REG:[0-9]+]], 2, 1
; CHECK-FM-VSX: fsel 1, [[REG]], 4, 3
; CHECK-FM-VSX: blr
Cleanup and improve PPC fsel generation First, we should not cheat: fsel-based lowering of select_cc is a finite-math-only optimization (the ISA manual, section F.3 of v2.06, makes this clear, as does a note in our own README). This also adds fsel-based lowering of EQ and NE condition codes. As it turned out, fsel generation was covered by a grand total of zero regression test cases. I've added some test cases to cover the existing behavior (which is now finite-math only), as well as the new EQ cases. llvm-svn: 179000
2013-04-08 06:11:09 +08:00
}
define double @cmp3(double %a, double %b, double %y, double %z) #0 {
entry:
%cmp = fcmp oeq double %a, %b
%y.z = select i1 %cmp, double %y, double %z
ret double %y.z
; CHECK: @cmp3
; CHECK-NOT: fsel
; CHECK: blr
; CHECK-FM: @cmp3
; CHECK-FM: fsub [[REG:[0-9]+]], 1, 2
; CHECK-FM: fsel [[REG2:[0-9]+]], [[REG]], 3, 4
; CHECK-FM: fneg [[REG3:[0-9]+]], [[REG]]
; CHECK-FM: fsel 1, [[REG3]], [[REG2]], 4
; CHECK-FM: blr
[PPC] Adjust some PowerPC tests to account for presence/absence of VSX Patch by Bill Seurer; committed on his behalf. These test cases generate slightly different code sequences when VSX is activated and thus fail. The update turns off VSX explicitly for the existing checks and then adds a second set of checks for most of them that test the VSX instruction output. llvm-svn: 220019
2014-10-17 09:41:22 +08:00
; CHECK-FM-VSX: @cmp3
; CHECK-FM-VSX: xssubdp [[REG:[0-9]+]], 1, 2
; CHECK-FM-VSX: xsnegdp [[REG3:[0-9]+]], [[REG]]
; CHECK-FM-VSX: fsel [[REG2:[0-9]+]], [[REG]], 3, 4
; CHECK-FM-VSX: fsel 1, [[REG3]], [[REG2]], 4
; CHECK-FM-VSX: blr
Cleanup and improve PPC fsel generation First, we should not cheat: fsel-based lowering of select_cc is a finite-math-only optimization (the ISA manual, section F.3 of v2.06, makes this clear, as does a note in our own README). This also adds fsel-based lowering of EQ and NE condition codes. As it turned out, fsel generation was covered by a grand total of zero regression test cases. I've added some test cases to cover the existing behavior (which is now finite-math only), as well as the new EQ cases. llvm-svn: 179000
2013-04-08 06:11:09 +08:00
}
attributes #0 = { nounwind readnone }