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46d19bc0c7
If the arch is P8, we will select XFLOAD to load the floating point, and then, expand it to vsx and non-vsx X-form instruction post RA. This patch is trying to convert the X-form to D-form if it meets the requirement that one operand of the x-form inst is the special Zero register, and another operand fed by add inst. i.e. y = add imm, reg LFDX. 0, y --> LFD imm(reg) Reviewers: Nemanjai Differential Revision: https://reviews.llvm.org/D49007 llvm-svn: 340149
65 lines
2.8 KiB
LLVM
65 lines
2.8 KiB
LLVM
; RUN: llc -verify-machineinstrs -mcpu=pwr7 -O0 -code-model=medium \
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; RUN: -fast-isel=false -mattr=-vsx <%s | FileCheck -check-prefix=MEDIUM %s
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; RUN: llc -verify-machineinstrs -mcpu=pwr7 -O0 -code-model=medium \
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; RUN: -fast-isel=false -mattr=+vsx <%s | FileCheck -check-prefix=MEDIUM-VSX %s
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; RUN: llc -verify-machineinstrs -mcpu=pwr7 -O0 -code-model=large \
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; RUN: -fast-isel=false -mattr=-vsx <%s | FileCheck -check-prefix=LARGE %s
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; RUN: llc -verify-machineinstrs -mcpu=pwr7 -O0 -code-model=large \
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; RUN: -fast-isel=false -mattr=+vsx <%s | FileCheck -check-prefix=LARGE-VSX %s
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; RUN: llc -verify-machineinstrs -mcpu=pwr9 -O0 -code-model=medium \
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; RUN: -fast-isel=false -mattr=+vsx <%s | FileCheck -check-prefix=MEDIUM-P9 %s
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; RUN: llc -verify-machineinstrs -mcpu=pwr9 -O0 -code-model=large \
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; RUN: -fast-isel=false -mattr=+vsx <%s | FileCheck -check-prefix=LARGE-P9 %s
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; Test correct code generation for medium and large code model
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; for loading a value from the constant pool (TOC-relative).
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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"
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target triple = "powerpc64-unknown-linux-gnu"
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define double @test_double_const() nounwind {
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entry:
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ret double 0x3F4FD4920B498CF0
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}
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; MEDIUM: [[VAR:[a-z0-9A-Z_.]+]]:
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; MEDIUM: .quad 4562098671269285104
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; MEDIUM-LABEL: test_double_const:
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; MEDIUM: addis [[REG1:[0-9]+]], 2, [[VAR]]@toc@ha
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; MEDIUM: addi [[REG2:[0-9]+]], [[REG1]], [[VAR]]@toc@l
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; MEDIUM: lfd {{[0-9]+}}, 0([[REG2]])
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; MEDIUM-VSX: [[VAR:[a-z0-9A-Z_.]+]]:
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; MEDIUM-VSX: .quad 4562098671269285104
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; MEDIUM-VSX-LABEL: test_double_const:
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; MEDIUM-VSX: addis [[REG1:[0-9]+]], 2, [[VAR]]@toc@ha
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; MEDIUM-VSX: lfd {{[0-9]+}}, [[VAR]]@toc@l([[REG1]])
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; LARGE: [[VAR:[a-z0-9A-Z_.]+]]:
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; LARGE: .quad 4562098671269285104
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; LARGE-LABEL: test_double_const:
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; LARGE: addis [[REG1:[0-9]+]], 2, [[VAR2:[a-z0-9A-Z_.]+]]@toc@ha
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; LARGE: ld [[REG2:[0-9]+]], [[VAR2]]@toc@l([[REG1]])
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; LARGE: lfd {{[0-9]+}}, 0([[REG2]])
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; LARGE-VSX: [[VAR:[a-z0-9A-Z_.]+]]:
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; LARGE-VSX: .quad 4562098671269285104
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; LARGE-VSX-LABEL: test_double_const:
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; LARGE-VSX: addis [[REG1:[0-9]+]], 2, [[VAR2:[a-z0-9A-Z_.]+]]@toc@ha
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; LARGE-VSX: ld [[REG2:[0-9]+]], [[VAR2]]@toc@l([[REG1]])
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; LARGE-VSX: lfdx {{[0-9]+}}, 0, [[REG2]]
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; MEDIUM-P9: [[VAR:[a-z0-9A-Z_.]+]]:
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; MEDIUM-P9: .quad 4562098671269285104
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; MEDIUM-P9-LABEL: test_double_const:
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; MEDIUM-P9: addis [[REG1:[0-9]+]], 2, [[VAR]]@toc@ha
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; MEDIUM-P9: addi [[REG2:[0-9]+]], [[REG1]], [[VAR]]@toc@l
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; MEDIUM-P9: lfd {{[0-9]+}}, 0([[REG2]])
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; LARGE-P9: [[VAR:[a-z0-9A-Z_.]+]]:
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; LARGE-P9: .quad 4562098671269285104
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; LARGE-P9-LABEL: test_double_const:
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; LARGE-P9: addis [[REG1:[0-9]+]], 2, [[VAR2:[a-z0-9A-Z_.]+]]@toc@ha
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; LARGE-P9: ld [[REG2:[0-9]+]], [[VAR2]]@toc@l([[REG1]])
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; LARGE-P9: lfd {{[0-9]+}}, 0([[REG2]])
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