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Printing floating point number in decimal is inconvenient for humans. Verbose asm output will print out floating point values in comments, it helps. But in lots of cases, users still need additional work to covert the decimal back to hex or binary to check the bit patterns, especially when there are small precision difference. Hexadecimal form is one of the supported form in LLVM IR, and easier for debugging. This patch try to print all FP constant in hex form instead. Reviewed By: RKSimon Differential Revision: https://reviews.llvm.org/D73566
19 lines
527 B
LLVM
19 lines
527 B
LLVM
; Test loads of 128-bit floating-point constants that can be represented
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; as 32-bit constants.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CONST
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define void @f1(fp128 *%x) {
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; CHECK-LABEL: f1:
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; CHECK: larl [[REGISTER:%r[1-5]+]], {{.*}}
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; CHECK: lxeb %f0, 0([[REGISTER]])
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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;
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; CONST: .long 0x3f800001
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store fp128 0xL00000000000000003fff000002000000, fp128 *%x
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ret void
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}
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