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8976f41d83
When using the large code model with FastISel (for example via clang -O0 which adds the optnone attribute), FP constants could still be materialized using adrp + ldr. Unconditionally enable the existing path for MachO to materialize the constant in code. For testing, restore literal_pools_float.ll to exercise the constant pool and add two optnone-functions that return a float and a double, respectively. Consolidate fpimm.ll and add a new fast-isel-fpimm.ll to check the code paths taken with FastISel. Differential Revision: https://reviews.llvm.org/D99607
21 lines
836 B
LLVM
21 lines
836 B
LLVM
; RUN: llc -mtriple=aarch64-linux-gnu -code-model=large -fast-isel -fast-isel-abort=1 -verify-machineinstrs < %s | FileCheck %s
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; RUN: llc -mtriple=aarch64-apple-darwin -code-model=large -fast-isel -fast-isel-abort=1 -verify-machineinstrs < %s | FileCheck %s
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; CHECK-LABEL: check_float2
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; CHECK: mov [[REG:w[0-9]+]], #4059
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; CHECK: movk [[REG]], #16457, lsl #16
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; CHECK-NEXT: fmov {{s[0-9]+}}, [[REG]]
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define float @check_float2() {
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ret float 3.14159274101257324218750
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}
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; CHECK-LABEL: check_double2
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; CHECK: mov [[REG:x[0-9]+]], #11544
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; CHECK-NEXT: movk [[REG]], #21572, lsl #16
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; CHECK-NEXT: movk [[REG]], #8699, lsl #32
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; CHECK-NEXT: movk [[REG]], #16393, lsl #48
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; LARGE-NEXT: fmov {{d[0-9]+}}, [[REG]]
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define double @check_double2() {
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ret double 3.1415926535897931159979634685441851615905761718750
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}
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