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llvm-project/llvm/test/CodeGen/PowerPC/rounding-ops.ll

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Adding -verify-machineinstrs option to PowerPC tests Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. llvm-svn: 277624
2016-08-04 02:17:35 +08:00
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -mattr=-vsx < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -mattr=+vsx < %s | FileCheck -check-prefix=CHECK-VSX %s
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +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 float @test1(float %x) nounwind {
%call = tail call float @floorf(float %x) nounwind readnone
ret float %call
Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion. This was done with the following sed invocation to catch label lines demarking function boundaries: sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct. llvm-svn: 186258
2013-07-14 04:38:47 +08:00
; CHECK-LABEL: test1:
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
; CHECK: frim 1, 1
[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-VSX-LABEL: test1:
; CHECK-VSX: frim 1, 1
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
}
declare float @floorf(float) nounwind readnone
define double @test2(double %x) nounwind {
%call = tail call double @floor(double %x) nounwind readnone
ret double %call
Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion. This was done with the following sed invocation to catch label lines demarking function boundaries: sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct. llvm-svn: 186258
2013-07-14 04:38:47 +08:00
; CHECK-LABEL: test2:
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
; CHECK: frim 1, 1
[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-VSX-LABEL: test2:
; CHECK-VSX: xsrdpim 1, 1
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
}
declare double @floor(double) nounwind readnone
define float @test3(float %x) nounwind {
PPC: Map frin to round() not nearbyint() and rint() Making use of the recently-added ISD::FROUND, which allows for custom lowering of round(), the PPC backend will now map frin to round(). Previously, we had been using frin to lower nearbyint() (and rint() via some custom lowering to handle the extra fenv flags requirements), but only in fast-math mode because frin does not tie-to-even. Several users had complained about this behavior, and this new mapping of frin to round is certainly more appropriate (and does not require fast-math mode). In effect, this reverts r178362 (and part of r178337, replacing the nearbyint mapping with the round mapping). llvm-svn: 187960
2013-08-08 12:31:34 +08:00
%call = tail call float @roundf(float %x) nounwind readnone
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
ret float %call
Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion. This was done with the following sed invocation to catch label lines demarking function boundaries: sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct. llvm-svn: 186258
2013-07-14 04:38:47 +08:00
; CHECK-LABEL: test3:
PPC: Map frin to round() not nearbyint() and rint() Making use of the recently-added ISD::FROUND, which allows for custom lowering of round(), the PPC backend will now map frin to round(). Previously, we had been using frin to lower nearbyint() (and rint() via some custom lowering to handle the extra fenv flags requirements), but only in fast-math mode because frin does not tie-to-even. Several users had complained about this behavior, and this new mapping of frin to round is certainly more appropriate (and does not require fast-math mode). In effect, this reverts r178362 (and part of r178337, replacing the nearbyint mapping with the round mapping). llvm-svn: 187960
2013-08-08 12:31:34 +08:00
; CHECK: frin 1, 1
[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-VSX-LABEL: test3:
; CHECK-VSX: frin 1, 1
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
}
PPC: Map frin to round() not nearbyint() and rint() Making use of the recently-added ISD::FROUND, which allows for custom lowering of round(), the PPC backend will now map frin to round(). Previously, we had been using frin to lower nearbyint() (and rint() via some custom lowering to handle the extra fenv flags requirements), but only in fast-math mode because frin does not tie-to-even. Several users had complained about this behavior, and this new mapping of frin to round is certainly more appropriate (and does not require fast-math mode). In effect, this reverts r178362 (and part of r178337, replacing the nearbyint mapping with the round mapping). llvm-svn: 187960
2013-08-08 12:31:34 +08:00
declare float @roundf(float) nounwind readnone
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
define double @test4(double %x) nounwind {
PPC: Map frin to round() not nearbyint() and rint() Making use of the recently-added ISD::FROUND, which allows for custom lowering of round(), the PPC backend will now map frin to round(). Previously, we had been using frin to lower nearbyint() (and rint() via some custom lowering to handle the extra fenv flags requirements), but only in fast-math mode because frin does not tie-to-even. Several users had complained about this behavior, and this new mapping of frin to round is certainly more appropriate (and does not require fast-math mode). In effect, this reverts r178362 (and part of r178337, replacing the nearbyint mapping with the round mapping). llvm-svn: 187960
2013-08-08 12:31:34 +08:00
%call = tail call double @round(double %x) nounwind readnone
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
ret double %call
Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion. This was done with the following sed invocation to catch label lines demarking function boundaries: sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct. llvm-svn: 186258
2013-07-14 04:38:47 +08:00
; CHECK-LABEL: test4:
PPC: Map frin to round() not nearbyint() and rint() Making use of the recently-added ISD::FROUND, which allows for custom lowering of round(), the PPC backend will now map frin to round(). Previously, we had been using frin to lower nearbyint() (and rint() via some custom lowering to handle the extra fenv flags requirements), but only in fast-math mode because frin does not tie-to-even. Several users had complained about this behavior, and this new mapping of frin to round is certainly more appropriate (and does not require fast-math mode). In effect, this reverts r178362 (and part of r178337, replacing the nearbyint mapping with the round mapping). llvm-svn: 187960
2013-08-08 12:31:34 +08:00
; CHECK: frin 1, 1
[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-VSX-LABEL: test4:
; CHECK-VSX: xsrdpi 1, 1
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
}
PPC: Map frin to round() not nearbyint() and rint() Making use of the recently-added ISD::FROUND, which allows for custom lowering of round(), the PPC backend will now map frin to round(). Previously, we had been using frin to lower nearbyint() (and rint() via some custom lowering to handle the extra fenv flags requirements), but only in fast-math mode because frin does not tie-to-even. Several users had complained about this behavior, and this new mapping of frin to round is certainly more appropriate (and does not require fast-math mode). In effect, this reverts r178362 (and part of r178337, replacing the nearbyint mapping with the round mapping). llvm-svn: 187960
2013-08-08 12:31:34 +08:00
declare double @round(double) nounwind readnone
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
define float @test5(float %x) nounwind {
%call = tail call float @ceilf(float %x) nounwind readnone
ret float %call
Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion. This was done with the following sed invocation to catch label lines demarking function boundaries: sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct. llvm-svn: 186258
2013-07-14 04:38:47 +08:00
; CHECK-LABEL: test5:
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
; CHECK: frip 1, 1
[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-VSX-LABEL: test5:
; CHECK-VSX: frip 1, 1
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
}
declare float @ceilf(float) nounwind readnone
define double @test6(double %x) nounwind {
%call = tail call double @ceil(double %x) nounwind readnone
ret double %call
Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion. This was done with the following sed invocation to catch label lines demarking function boundaries: sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct. llvm-svn: 186258
2013-07-14 04:38:47 +08:00
; CHECK-LABEL: test6:
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
; CHECK: frip 1, 1
[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-VSX-LABEL: test6:
; CHECK-VSX: xsrdpip 1, 1
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
}
declare double @ceil(double) nounwind readnone
define float @test9(float %x) nounwind {
%call = tail call float @truncf(float %x) nounwind readnone
ret float %call
Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion. This was done with the following sed invocation to catch label lines demarking function boundaries: sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct. llvm-svn: 186258
2013-07-14 04:38:47 +08:00
; CHECK-LABEL: test9:
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
; CHECK: friz 1, 1
[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-VSX-LABEL: test9:
; CHECK-VSX: friz 1, 1
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
}
declare float @truncf(float) nounwind readnone
define double @test10(double %x) nounwind {
%call = tail call double @trunc(double %x) nounwind readnone
ret double %call
Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion. This was done with the following sed invocation to catch label lines demarking function boundaries: sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct. llvm-svn: 186258
2013-07-14 04:38:47 +08:00
; CHECK-LABEL: test10:
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
; CHECK: friz 1, 1
[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-VSX-LABEL: test10:
; CHECK-VSX: xsrdpiz 1, 1
Add PPC FP rounding instructions fri[mnpz] These instructions are available on the P5x (and later) and on the A2. They implement the standard floating-point rounding operations (floor, trunc, etc.). One caveat: frin (round to nearest) does not implement "ties to even", and so is only enabled in fast-math mode. llvm-svn: 178337
2013-03-29 16:57:48 +08:00
}
declare double @trunc(double) nounwind readnone
Implement FRINT lowering on PPC using frin Like nearbyint, rint can be implemented on PPC using the frin instruction. The complication comes from the fact that rint needs to set the FE_INEXACT flag when the result does not equal the input value (and frin does not do that). As a result, we use a custom inserter which, after the rounding, compares the rounded value with the original, and if they differ, explicitly sets the XX bit in the FPSCR register (which corresponds to FE_INEXACT). Once LLVM has better modeling of the floating-point environment we should be able to (often) eliminate this extra complexity. llvm-svn: 178362
2013-03-30 03:41:55 +08:00