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llvm-project/llvm/test/CodeGen/PowerPC/i1-to-double.ll

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PowerPC: Do not use llc -march in tests. `llc -march` is problematic because it only switches the target architecture, but leaves the operating system unchanged. This occasionally leads to indeterministic tests because the OS from LLVM_DEFAULT_TARGET_TRIPLE is used. However we can simply always use `llc -mtriple` instead. This changes all the tests to do this to avoid people using -march when they copy and paste parts of tests. This patch: - Removes -march if the .ll file already has a matching `target triple` directive or -mtriple argument. - In all other cases changes -march=ppc32/-march=ppc64 to -mtriple=ppc32--/-mtriple=ppc64-- See also the discussion in https://reviews.llvm.org/D35287 llvm-svn: 309754
2017-08-02 06:20:41 +08:00
; RUN: llc -verify-machineinstrs -mcpu=ppc32 -mtriple=powerpc-unknown-linux-gnu < %s | FileCheck %s
With PPC CR bit registers, handle int_to_fp on older cores On cores without fpcvt support, we cannot promote int_to_fp i1 operations, because there is nothing to promote them to. The most straightforward implementation of this uses a select to choose between the two possible resulting floating-point values (and that's what is done here). llvm-svn: 203015
2014-03-06 06:14:00 +08:00
define double @test(i1 %X) {
%Y = uitofp i1 %X to double
ret double %Y
}
; CHECK-LABEL: @test
; CHECK: andi. {{[0-9]+}}, 3, 1
[PowerPC] Expand ISEL instruction into if-then-else sequence. Generally, the ISEL is expanded into if-then-else sequence, in some cases (like when the destination register is the same with the true or false value register), it may just be expanded into just the if or else sequence. llvm-svn: 292154
2017-01-17 04:12:26 +08:00
; CHECK-NEXT: addis 4, 4, .LCPI
; CHECK-NEXT: addis 5, 5, .LCPI
; CHECK-NEXT: bc 12, 1, [[TRUE:.LBB[0-9]+]]
; CHECK: ori 3, 4, 0
; CHECK-NEXT: b [[SUCCESSOR:.LBB[0-9]+]]
; CHECK-NEXT: [[TRUE]]
; CHECK-NEXT: addi 3, 5, 0
; CHECK-NEXT: [[SUCCESSOR]]
; CHECK-NEXT: lfs 1, 0(3)
; CHECK-NEXT: blr